Don’t Make Me Think
How to make your web site useable
Here’s a cure for badly designed web pages. (This is major news since everything is now on the web.) Follow Krug’s key heuristic: “Don’t make me think.” It works. His manual is a model of what it preaches. It is the best, clearest, most succinct hands-on guide for amateurs and pros engaged in making the web a useable public space. You don’t need a consultant; you need this book. I pray everyone reads and obeys.
When you're creating a site, your job is to get rid of the question marks.
We don't read pages. We scan them.
Create a clear visual hierarchy. One of the best ways to make a page easy to grasp in a hurry is to make sure that the appearance of the things on the page -- all of the visual cues -- clearly and accurately portray the relationships between the things on the page.
Jakob Nielsen and Tom Landauer have shown that testing five users will tend to uncover 85 percent of a site's usability problems, and that there is a serious case of diminishing returns for additional users.