Presents the life of the railroad engineer who was famous for always bringing his train in on time and whose brave actions during his last ride on the Cannonball Express saved the lives of all of the passengers and inspired the well-k...

What's it like to have a wiggly, twisty-turny tooth inside your mouth? Stephen Krensky's funny, kid-friendly, rhyming text answers this question and more. ''Do lions have this problem, too? What do sharks and hippos do?'' This Step 1 ...