Folding out car by car, this accordion-style book takes readers on a tour of what's inside a train. Each car has something to find-things that make loud noises, things in different shapes-and along the way, a little child searches for his missing hat. The back of the book is a running landscape dotted with objects for children to find and count. All Aboard! Let's Ride a Train is a fun, interactive ride from beginning to end.