The Reading Warehouse

Machines make work easier-- helping break things apart, lift heavy objects, and change the power and direction of force applied to them. In this accessible picture book, celebrated nonfiction author David A. Adler outlines different types of simple machines--wedges, wheels, levers, pulleys, and more--and gives common examples of how we use them every day.

Anna Raff's bright illustrations show how simple machines work--and add a dose of fun and humor, too. Two appealing kids and their comical cat use machines to ride see-saws, turn knobs, and even eat apples.

Perfect for classrooms or for budding engineers to read on their own, Simple Machines uses clear, simple language to introduce important mechanical vocabulary, and easy-to-understand examples to illustrate how we use machines to solve all kinds of problems.

Don't miss David A. Adler and Anna Raff's other science collaborations--including Light Waves; Magnets Push, Magnets Pull; and Things That Float and Things That Don't.

Anna Raff is an award-winning illustrator of many children's books. She has an MFA from the School of Visual Arts and lives in New York City.

David A. Adler is the author of nearly 200 books for children. He was a New York City mathematics teacher for nine years before becoming inspired to write his first book. When his wife gave birth to their first child, David stayed home to take care of his son and to write, which he has been doing ever since. He lives in Queens, NY with his wife Renee.