Since Don't Make Me Think was first published in 2000, hundreds of thousands of Web designers and developers have relied on usability guru Steve Krug's guide to help them understand the principles of intuitive navigation and information design. Witty, commonsensical, and eminently practical, it's one of the best-loved and most recommended books on the subject.

Now Steve returns with fresh perspective to reexamine the principles that made Don't Make Me Think a classic-with updated examples and a new chapter on mobile usability. And it's still short, profusely...

It's been known for years that usability testing can dramatically improve products. But with a typical price tag of $5,000 to $10,000 for a usability consultant to conduct each round of tests, it rarely happens.

In this how-to companion to Don't Make Me Think: A Common Sense Approach to Web Usability, Steve Krug spells out a streamlined approach to usability testing that anyone can easily apply to their own Web site, application, or other product. (As he said in Don't Make Me Think, "It's not rocket surgery.")

Using practical advice, plenty of illustrations, and his...