Steve Krug spent years watching ordinary people fumble their way through websites, and this short primer turns those observations into a working philosophy. His central claim is simple: users satisfice. They grab the first workable option rather than the best one, they scan instead of read, and they muddle through interfaces that puzzle them. Good design respects those habits instead of fighting them. Krug walks through navigation, page hierarchy, usability testing on a budget, and the politics of surviving an executive's pet ideas. The tone stays wry and unpretentious, closer to a friendly colleague than a lecture.