Book excerpt: In this engaging biography, readers will learn about the inventor of Nerf, Reyn Guyer. Follow the story of Guyer from his early collaboration inventing the game Twister, to the Nerf indoor ball, Nerf Football, and Nerf Blaster. Sidebars, historic photos, and a glossary enhance readers' understanding of this topic. Additional features include a table of contents, an index, a timeline and fun facts. Aligned to Common Core Standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.