If you're thinking of networking your home and are looking for a good, basic introduction, take a look at Home Networking Survival Guide. Just keep in mind that some of the material is not applicable to Australian households. You may have trouble finding some of products listed, and even some of the vendors that do distribute to Australia may not have the particular product discussed.
Strom takes a logical approach in stepping readers through the process of setting up a home network - wiring choices, sharing files, printers or an Internet connection and so on, with topics advancing in complexity. There's well-explained coverage of wired and wireless networks.
Home Networking Survival Guide's advice for scoping out your network, as well as troubleshooting, is useful stuff for beginners. There's also some non-technical, practical advice - such as which light to use when crawling around under your house trying to run cabling.
Once past the nuts and bolts of networking, Home Networking Survival Guide turns to issues like security and monitoring your kids' use of the network. A chapter called Fun and Games looks at things like making movies and hooking up the stereo to the home network.
In all, a good option for explaining the processes of home networking, despite some inapplicability to Australian conditions.