Like other books in the "Special Edition Using" series, the cover of this book claims it is the "only Filemaker book you'll ever need." Well, that's just some very clever marketing, and probably not correct for most users. But this IS a fantastic 2nd book to use and keep as a reference once you are familiar with the basics of Filemaker.
Folks just starting out with the program may not appreciate the absence of true, from the ground up, tutorials walking you through every aspect of the program. For that kind of approach, I whole-heartedly recommend the FM Pro 7 Bible by Schwartz and Cohen. The Bible was the book I started with back when the software was at version 4, and I actually bought a new copy covering version 7 when I came back to the software after shelving it for a few years. The Bible provides an excellent foundation for the basics+.
And then this book steps in with excellent coverage of more advanced concepts. Perhaps the most useful sections come in chapters 5-7, in which the authors write the best explanation of entity-relationship theory I've ever read. Best of all, it's all in the context of designing databases with FMP 7 -- you actually learn how to use the software to design complex, multi-table databases in a way that makes the material stick. Read these chapters once for the concepts -- then again sitting before your computer as you put FMP 7 through it's paces. You WILL learn this stuff -- and it WILL stick.
Also helpful was coverage re. the several ways to get your database on the web, which, in version 7, is quite different from your options in earlier versions. These sections are an excellent update to the authors' fine work on Advanced FileMaker Pro 6 Web Development from Wordware Press (which, by the way, is an excellent read and is still relevant, if a little dated).
I'm using all I've learned to develop a complex trial notebook db program for my law firm, and this book, and the Bible, together convince me that I can in fact do it all on my own!