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      Cover image for Kaleidoscope Logic Puzzles
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      Kaleidoscope Logic Puzzles

      Jim Bumgardner

      Is this a book of logic puzzles or a coloring book? Why not both? The intricate, visually appealing puzzles in this book are based on slitherlink: a sudoku-like puzzle that…

      $19.99

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      Cover image for Krazydad Stupendous Suguru Volume 7: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 7: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15x20 Suguru puzzles to keep you distracted for countless hours. Each…

      $30.99

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      Cover image for Krazydad Killer Sudoku Volume 3: 360 Intermediate to Tough Puzzles
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      Krazydad Killer Sudoku Volume 3: 360 Intermediate to Tough Puzzles

      Jim Bumgardner

      Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you…

      $30.99

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      Cover image for Krazydad Diabolical Two Not Touch Volume 1: 360 Tricky Star Battle Puzzles
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      Krazydad Diabolical Two Not Touch Volume 1: 360 Tricky Star Battle Puzzles

      Jim Bumgardner

      From krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 deviously tricky Star Battle puzzles. If you…

      $27.99

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      Cover image for Krazydad Large Kakuro Volume 1: 99 Enormously Satisfying Puzzles
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      Krazydad Large Kakuro Volume 1: 99 Enormously Satisfying Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 99 stupendously addictive 14x19 Kakuro puzzles for you to solve. Printed on a…

      $27.99

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      Cover image for Krazydad Easy Suguru Volume 1: 300 Insanely Addicting Puzzles
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      Krazydad Easy Suguru Volume 1: 300 Insanely Addicting Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 300 insanely addictive Suguru puzzles for you to solve.Each puzzle is printed with…

      $24.99

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      Cover image for Krazydad Challenging Suguru Volume 1: 300 Insanely Addicting Puzzles
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      Krazydad Challenging Suguru Volume 1: 300 Insanely Addicting Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 300 insanely addictive Suguru puzzles for you to solve.Each puzzle is printed with…

      $24.99

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      Cover image for Krazydad Easy Suguru Volume 2: 300 Insanely Addicting Puzzles
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      Krazydad Easy Suguru Volume 2: 300 Insanely Addicting Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 300 insanely addictive Suguru puzzles for you to solve. Each puzzle is printed…

      $24.99

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      Cover image for Krazydad Easy Suguru Volume 3: 300 Insanely Addicting Puzzles
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      Krazydad Easy Suguru Volume 3: 300 Insanely Addicting Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 300 insanely addictive Suguru puzzles for you to solve.Each puzzle is printed with…

      $24.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Large Kakuro Volume 2: 99 Enormously Satisfying Puzzles
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      Krazydad Large Kakuro Volume 2: 99 Enormously Satisfying Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 99 stupendously addictive 14x19 Kakuro puzzles for you to solve. Printed on a…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Large Kakuro Volume 3: 99 Enormously Satisfying Puzzles
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      Krazydad Large Kakuro Volume 3: 99 Enormously Satisfying Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 99 stupendously addictive 14x19 Kakuro puzzles for you to solve. Printed on a…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Tough Kakuro Volume 1: 99 Enormously Challenging Puzzles
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      Krazydad Tough Kakuro Volume 1: 99 Enormously Challenging Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 99 stupendously challenging 14x19 Kakuro puzzles for you to solve. Printed on a…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Tough Kakuro Volume 2: 99 Enormously Challenging Puzzles
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      Krazydad Tough Kakuro Volume 2: 99 Enormously Challenging Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 99 stupendously challenging 14x19 Kakuro puzzles for you to solve. Printed on a…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Tough Kakuro Volume 3: 99 Enormously Challenging Puzzles
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      Krazydad Tough Kakuro Volume 3: 99 Enormously Challenging Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 99 stupendously challenging 14x19 Kakuro puzzles for you to solve. Printed on a…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Krypto Kakuro Volume 1: 144 Enigmatic Puzzles
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      Krazydad Krypto Kakuro Volume 1: 144 Enigmatic Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 144 addictively enigmatic Krypto Kakuro puzzles for you to solveCombining the best features…

      $30.99

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      Cover image for Krazydad Stupendous Suguru Volume 2: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 2: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15x20 Suguru puzzles to keep you distracted for countles hours. Each…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Stupendous Suguru Volume 3: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 3: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15 20 Suguru puzzles to keep you distracted for countles hours…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Battleships Attack!! Volume 2: 216 Ferocious Puzzles
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      Krazydad Battleships Attack!! Volume 2: 216 Ferocious Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 216 15 x 15 Battleship Solitaire puzzles to keep you distracted for countless…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Killer Sudoku Volume 1: 360 Intermediate to Tough Puzzles
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      Krazydad Killer Sudoku Volume 1: 360 Intermediate to Tough Puzzles

      Jim Bumgardner

      Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Large Print Killer Sudoku Volume 1: 108 Intermediate to Tough Puzzles
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      Krazydad Large Print Killer Sudoku Volume 1: 108 Intermediate to Tough Puzzles

      Jim Bumgardner

      Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Large Print Psycho Killer Sudoku Volume 1: 108 Tough to Insane Puzzles
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      Krazydad Large Print Psycho Killer Sudoku Volume 1: 108 Tough to Insane Puzzles

      Jim Bumgardner

      Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Killer Sudoku Volume 2: 360 Intermediate to Tough Puzzles
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      Krazydad Killer Sudoku Volume 2: 360 Intermediate to Tough Puzzles

      Jim Bumgardner

      Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Psycho Killer Sudoku Volume 2: 360 Tough to Insane Puzzles
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      Krazydad Psycho Killer Sudoku Volume 2: 360 Tough to Insane Puzzles

      Jim Bumgardner

      Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Psycho Killer Sudoku Volume 3: 360 Tough to Insane Puzzles
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      Krazydad Psycho Killer Sudoku Volume 3: 360 Tough to Insane Puzzles

      Jim Bumgardner

      Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Stupendous Suguru Volume 8: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 8: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15x20 Suguru puzzles to keep you distracted for countless hours. Each…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Stupendous Suguru Volume 9: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 9: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15x20 Suguru puzzles to keep you distracted for countless hours. Each…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Two Not Touch Volume 2: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times
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      Krazydad Two Not Touch Volume 2: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times

      Jim Bumgardner

      From Krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 of your favorite Star Battle puzzles. These…

      $27.99

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      Cover image for Krazydad Two Not Touch Volume 3: 360 Star Battle Puzzles to Preserve Your Sanity in these Trying Times
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      Krazydad Two Not Touch Volume 3: 360 Star Battle Puzzles to Preserve Your Sanity in these Trying Times

      Jim Bumgardner

      From Krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 of your favorite Star Battle puzzles. These…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Diabolical Two Not Touch Volume 2: 360 Tricky Star Battle Puzzles
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      Krazydad Diabolical Two Not Touch Volume 2: 360 Tricky Star Battle Puzzles

      Jim Bumgardner

      From krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 deviously tricky Star Battle puzzles. If you…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Diabolical Two Not Touch Volume 3: 360 Tricky Star Battle Puzzles
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      Krazydad Diabolical Two Not Touch Volume 3: 360 Tricky Star Battle Puzzles

      Jim Bumgardner

      From krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 deviously tricky Star Battle puzzles. If you…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Two Not Touch Volume 4: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times
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      Krazydad Two Not Touch Volume 4: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times

      Jim Bumgardner

      From Krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 of your favorite Star Battle puzzles. These…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Two Not Touch Volume 5: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times
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      Krazydad Two Not Touch Volume 5: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times

      Jim Bumgardner

      From Krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 of your favorite Star Battle puzzles. These…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Sudoku Emergency Kit
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      Krazydad Sudoku Emergency Kit

      Jim Bumgardner

      Are you having a SUDOKU EMERGENCY? This variety book contains 11 fun kinds of Sudoku which are just the medicine your addled brain needs! 260 puzzles in all!

      Varieties include:

      …

      $30.99

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      Cover image for Krazydad Where Did I Put My Sudoku Book?
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      Krazydad Where Did I Put My Sudoku Book?

      Jim Bumgardner

      Can't find your Sudoku Book? This variety book contains 11 fun kinds of Sudoku. Just the medicine your addled brain needs! 260 puzzles in all. Varieties include

      Classic Sudoku Center-Dot…

      $30.99

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      Cover image for Krazydad Gluten-free Sudoku
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      Krazydad Gluten-free Sudoku

      Jim Bumgardner

      Are you on a puzzle diet? This variety book contains 11 fun kinds of gluten-free, locally-grown, free-range Sudoku which will not disagree with you in any way! 260 puzzles in…

      $30.99

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      Cover image for A Panoply of Puzzles
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      A Panoply of Puzzles

      Jim Bumgardner

      A Panoply is an "impressive collection" and that's exactly what you'll find in this new book from New York Times puzzle constructor Jim Bumgardner. This variety book features 405 of…

      $33.99

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      Cover image for Krazydad Stupendous Suguru Volume 1: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 1: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15x20 Suguru puzzles to keep you distracted for countles hours. Each…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Stupendous Suguru Volume 5: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 5: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15x20 Suguru puzzles to keep you distracted for countles hours. Each…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Stupendous Suguru Volume 6: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 6: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15 20 Suguru puzzles to keep you distracted for countles hours…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Battleships Attack!! Volume 1: 216 Ferocious Puzzles
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      Krazydad Battleships Attack!! Volume 1: 216 Ferocious Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 216 15 x 15 Battleship Solitaire puzzles to keep you distracted for countless…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad 6x6 Kakuro Volume 1: 300 Bite-sized Puzzles
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      Krazydad 6x6 Kakuro Volume 1: 300 Bite-sized Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 300 addictively bite-sized 6x6 Kakuro puzzles for you to solvePrinted in an attractive…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Battleships Attack!! Volume 3: 216 Ferocious Puzzles
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      Krazydad Battleships Attack!! Volume 3: 216 Ferocious Puzzles

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 216 15 x 15 Battleship Solitaire puzzles to keep you distracted for countless…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Psycho Killer Sudoku Volume 1: 360 Tough to Insane Puzzles
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      Krazydad Psycho Killer Sudoku Volume 1: 360 Tough to Insane Puzzles

      Jim Bumgardner

      Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Stupendous Suguru Volume 4: 108 Puzzles of Unusual Size
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      Krazydad Stupendous Suguru Volume 4: 108 Puzzles of Unusual Size

      Jim Bumgardner

      From the creator of the most popular free printable puzzle website on the Internet, Krazydad, here are 108 full-page 15x20 Suguru puzzles to keep you distracted for countles hours. Each…

      $30.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for Krazydad Two Not Touch Volume 1: 360 Star Battle Puzzles to Preserve Your Sanity in these Trying Times
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      Krazydad Two Not Touch Volume 1: 360 Star Battle Puzzles to Preserve Your Sanity in these Trying Times

      Jim Bumgardner

      From Krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 of your favorite Star Battle puzzles. These…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Paperback
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      Krazydad Diabolical Two Not Touch Volume 4

      Jim Bumgardner

      From krazydad, constructor of the wildly popular and addictive puzzles published in The New York Times as Two Not Touch, here are 360 deviously tricky Star Battle puzzles. If you…

      $27.99

      Available to order, ships in approx 2 weeksAvailable to order

      Cover image for The Elements of Java (TM) Style
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      The Elements of Java ™ Style

      Allan Vermeulen (Ambysoft Inc., Toronto),Scott W. Ambler (Rogue Wave Software),Greg Bumgardner (Ambysoft Inc., Toronto),Eldon Metz (Rogue Wave Software),Trevor Misfeldt (Rogue Wave Software)

      Illustrates rules of Java code-writing with parallel examples of correct and incorrect usage.

      $76.99

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