Steve Krug's Usability Essentials

Great introduction to usability from Steve Krug, which also gives me an opportunity to link to my article on usability testing.

Via 37signals.

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designed for use cover

But wait, there's more!

Want to read more like this? Buy my book's second edition! Designed for Use: Create Usable Interfaces for Applications and the Web is now available DRM-free directly from The Pragmatic Programmers. Or you can get it on Amazon, where it's also available in Chinese and Japanese.