Since it was first published in 2000, hundreds of thousands of Web designers and developers have relied on usability guru Steve Krug's guide to 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. It's a core foundational book that every Web designer must internalise to make their designs truly effective.

In this substantially revised edition, Steve return...

ant to know what your users are thinking? If you’re a product manager or developer, this book will help you learn the techniques for finding the answers to your most burning questions about your customers. With step-by-step guidance, Validating Product Ideas shows you how to tackle the research to build the best possible product.

The essential interaction design guide, fully revised and updated for the mobile age About Face: The Essentials of Interaction Design, Fourth Edition is the latest update to the book that shaped and evolved the landscape of interaction design. This comprehensive guide takes the worldwide shift to smartphones and tablets into account. New information includes discussions on mobile apps, touch interfaces, screen size considerations, and more.

The new full-color interior and unique layout better...