Perfect for Thomas & Friends enthusiasts, this guidebook is filled with detailed diagrams and explanations of how Thomas the Tank Engine and his engine friends and other pals work. Train-obsessed boys and girls ages 4 to 7 will pore over this hardcover book and its detailed cutaway schematic diagrams that show the working parts of Thomas, Percy, Gordon, Harold the Helicopter, and other beloved Thomas & Friends characters! Simple text explains how to drive an engine, operate train tracks, and much more. Labels and descriptions of the way things work will keep train fans riveted for hours.