This book dates back to 1999, and since I'm writing this in 2006, that's seven years ago. Seven years is a long time for computer documentation. Virtually everything in the book is so far out of date that it's useless. The authors also didn't do a very good job of staying on topic; there are many long digressions that are neither interesting nor useful. In many cases, the authors merely give a broad-strokes outline of how to accomplish a particular task, or talk about several different approaches that have been taken by different people, without concluding with anything very helpful about how to actually accomplish the task.