A better title for this book would be "Everything You Wanted to Know About SharePoint But Were Afraid to Ask (or Google Couldn't Tell You). If you are a SharePoint administrator, and you want to do something that slightly deviates from the out of the box installation of WSS 3.0 or MOSS, then you definately should buy this book. I own 6 WSS 3.0 books and by far this one is the best. Other books tell you "you can do x advanced feature;" this book says "this is how you implement and use x advanced feature." Among other things it will teach you setting up form authentication, an in-depth look into STSADM, using Excel Services, Business Data Catalogs, and how (and why) to use SharePoint Designer. This book isn't for people just starting off with SharePoint, and I would still recommend another resource for the mundane type questions. However, if you want to really know how to maximize your SharePoint implementation, this book is definately for you.