Train Man by Andrea Zimmerman and David Clemesha (Henry Holt, 2012) is a part of a series of books that also includes Fire Engine Man and Digger Man. In Train Man, a young boy tells his younger brother about trains and how he cannot wait to grow up so he can work on a train. He describes the job he will have, the train he will drive, the places he will go, and he even promises to let his little brother join in and pull the whistle every now and then.
The illustrations are bright acrylic paints, and I loved the inclusion of the brother in each scene. My son (age 5) likewise loves trains, construction trucks, and fire engines, so he has also enjoyed reading this as well as the other books in the series.
This book is a 2012 Cybils nominated book.