Billy Sure kid entrepreneur and the best test

"Everyone is talking about Billy Sure, the twelve-year-old genius and millionaire inventor whose inventions have become instant hits. Billy's lucky because in addition to being a rich and famous inventor, he already knows what he's best at: inventing, of course! He wants to help other kids figure out what they're best at too, and his latest invention, 'The Best Test' will do just that!"--Amazon.com.