It’s got some really good features, but it’s got some problems, too.  Among the good stuff are simple text, a sturdy binding, color photos.  I also like the way it makes a very deliberate connection between arial photos and drawn maps, in order to illustrate the way maps depict areas from above.  It does a fairly good job of describing different purposes for different types of maps, but I wish it explained the purpose of colors on maps to represent different things (sometimes political boundaries, sometimes elevations, etc.).  Also, the picture of the floor plan they use doesn’t look like any floor plan for any house ever constructed, which again falls into the trap of over-simplification of information for young children.