Take off with ten of the fastest planes in the world! Join them as they race through the sky on missions. From spying on enemies to protecting allies, readers in grades 4-8 will discover how these supersonic planes operate like birds of the highest skies. Fast, faster, fastest! From cars to sea creatures, this fact- and image-filled series lets readers discover the fastest creatures and creations in a variety of categories. These high interest, low reading level books feature stand-alone spreads, so readers can flip pages and read in any order. Glossary words are defined on the page where they appear, boosting reader comprehension.