Long takes the mystique out of setting up your home network. In plain language, adorned with only a minimal of jargon, he helps you plan and install your network. Where this can be purely wired, wireless or a combination of both.
He also draws your attention to network security. Especially if you have wireless nodes. Without care, these can be easily detected by someone wardriving around your neighbourhood and then used as her connection to the Internet. If that's all she does, you might say, what's the big deal? But there is no assurance that she will merely use your network as a passive conduit. She might also launch attacks against your machines. The book suggests how to protect yourself.
It's really not that difficult to set up your net. Perhaps the best advice about this book is simply to get started on it. That initial hurdle may be the hardest.