This book offers pages of the history of operating systems, including the future of Windows, in great detail. The author should have put that much thought into the discussion of networking with Windows XP. There are some instructions, not very well written, but this author doesn't seem to understand how owners of several computers approach creating small networks. There's no discussion of why you would take a specific approach, or when you need to take specific steps.
I also bought Home Networking for Dummies, which is the most well-designed approach to networking I've read. If you want to know when to do something, how to do it, why to do it, and read extremely well-written instructions that anyone could follow, don't buy this book, buy Home Networking for Dummies instead.