I've read a lot of picture books about trains this year. A lot. This one is my favorite. It explains about the different parts of the train (locomotive, conductor, etc) without getting too specific (FRED, or Flashing Read End Device, features in another train book that overstayed its welcome in my house). The book features passenger, freight, mail, commuter, and speed trains, with accompanying pictures for all. A big hit with the train lover in my home.