Grade 3–4—The 13 two-page chapters in each book are attractively designed. The first spread shows the featured vehicle on a bright yellow background. Numerous parts of the cutaway illustrations are labeled with one-sentence explanations of the indicated part's function. The rest of each title is nicely arranged with black font on a bright blue background. Photos and captions, diagrams, "Fun Facts," "That's Amazing!" boxes, and one experiment add a considerable amount of information to the text. Of the three, Rocket is the best. Jet Plane apparently cannot decide who or what steers the plane: the ailerons, the rudder, the control columns, or the pilot and copilot. Each one is described as having that task. It is doubtful that most passenger jets are jumbo jets as stated in the text.
