What You See When You Look at a Map"" is an elementary diagram of a living-room; but what you see when you look at ""Modern Map-Making"" (and the Mercator projections and longitude-latitude explanations) is a complex set of abstractions that belong in an entirely different book. In contrast to the sensibly one-level First Book of Maps and Globes by the Epsteins, this jumps from a babyish opening through some scanty history (which Moore & Brinton supply), and works into quite another world of mathematical, astronomical, and surveying constructs. The illustrations offer little guidance--they're neither imaginative nor dynamic--and the conceptual charts are drafted for people already accustomed to perceiving three dimensions in two. The last chapter on how to do it yourself starts by teaching cartography to a very young neophyte. . . yet ends in a bewildering forest of angles, protractors, theodolites, and trigonometry, and then says ""Map-making is fun.