There are a LOT of books that take you through the dos and don'ts of web site design. As a web designer I tend to take these with a grain of salt - one guy's opinion may not necesarily translate into good web strategy. But this book seems to know common sense from personal opinion. Nielson goes through tried and true design and architecture practices, in a relatively structured and logical fashion. At times a little wordy, but helpful. This is definitely a good book to accompany Siegel's "Killer Web Sites". With these two on your shelf you're definitely a step ahead of the rest.