The same kind of programmed observation Selsam and Hunt conducted in their First Looks at leaves and fish (both 1972) has more intrinsic appeal here when the subject turns to snakes, lizards and turtles. Matching up the pictured creatures with instructions to ""find the turtle with feet shaped like paddles"" or ""legs like those of an elephant"" could be an attention-holder. But as in other entries in this series, the highly simplified definitions might create confusion: reptiles are defined as animals which have scales. . . and which don't have the fins, hair or feathers that some other animals with scales do have. (Simple, no?) Then a lizard is described as looking like ""a snake with legs"" but seven pages later we are shown a legless lizard and a new set of defining characteristics. (Salamanders, which might easily be mistaken for lizards, aren't mentioned here.) Younger readers will probably find the look-see format and the subject matter per se quite satisfying; those old enough to question definitions and begin thinking in terms of classification systems will need to know more.