1. About Face 3. The Essentials of Interaction Design by Alan Cooper, Robert Reimann and David Cronin

2. Prioritizing Web Usability by Jakob Nielsen, Hoa Loranger

3. Designing the Obvious. A Common Sense Approach to Web Application Design by Robert Hoekman, Jr.

4. Don’t Make Me Think. A Common Sense Approach to Web Usability by Steve Krug

5. The Design of Sites. Patterns for Creating Winning Web Sites by Douglas Van Duyne, James Landay, Jason Hong.