My Little Blue Robot by Stephen T. Johnson, for budding engineers, or for kids looking for some robot fun, kids will love this build-it-yourself book. Using sturdy, ultra-thick cardboard pages, this book contains all the components and clear instructions needed to assemble this fun toy robot! With flat pieces that fit together with slots and tabs, there's no glue or mess! Hardcover, 16 pages. Recommended for ages 4 years and older. This book contains small pieces that could be a choking hazard, and is not intended for children under age 3.