I consider the design of everyday things a good book but I am not sure I would consider it a "must-have". I bought it because someone mentioned it on HN before in the same way ("Must-read") and while I found it insightful, most of the principles were not new to me and I found it poorly written (it could have been MUCH shorter and concise). Some pages are really fillers. That's also why I question its "universal" status, as it is far from being perfect (especially in the later chapters).