I'm giving this five stars, because I think it does a simple job well. It does NOT give you any real conceptual basis for GIS (aside from a one-page introduction to each chapter). It is basically a step-by-step guide to accomplishing some predefined tasks in ArcGIS, and it does that really well.
I'm using it in a GIS class right now. The book is divided into sections of a few chapters each. Sections have a common theme running through them, in terms of the subject matter they work with. In Chapters 3 and 4, you're trying to find where Amelia Earheart and her pilot went down; in Ch. 5 & 6, you're making a collection of maps of Africa, showing population density, location of different kinds of wildlife, symbologising rivers according to whether they're perennial or seasonal. Having interesting data to work with helps you work through the tedium of "Right click on the Countries layer (NOT the Countries data frame", now "Select 'Open Table'", etc. Going back and forth between book and screen is tedious, but interesting data makes it easier. Furthermore, little comments like the parenthetical NOT above, help to make sure that you're doing what you're supposed to be. You do get the impression that the authors are really experienced in writing computer manuals. Other chapters work with different kinds of data, as you learn your way around what is a rather complicated software product.
I tend to learn best through a combination of conceptual and hands-on thinking (I need the 'why' and the 'how'), and this is a little too much of the latter for me, so I'll be getting something else to cover that. But as computer manuals go, this one is really complete.