The book is organized around brief lessons, each of which deals with a particular set of facts you have to know for the test. The lessons themselves are mostly prose, though conceptual diagrams and screen shots help drive some points home. Each lesson concludes with a summary of key points, and practice questions appear frequently. (Answers to the questions are listed, without comment, in an appendix.) Exercises, discussed a bit in the same appendix, direct you through useful hands-on practice. The companion CD-ROM contains a multimedia training guide too. --David Wall