When computer programming pioneer Admiral Grace Hopper discovered a moth causing problems in a mechanical computer, the term debugging was born. This book explores how fixing programming and hardware problems has developed into a critical process for computer programmers. The text includes case studies and examples of debugging tools. Readers are challenged to review a simple program with a problem, and to locate the bug. This provides young computer programmers the chance to see debugging skills in use. Photographs and sidebars help readers gain a solid comprehension of debugging skills and practices.