Sharp, H., Rogers, Y., Preece, J. (2007). Interaction Design: Beyond Human-Computer Interaction . John Wiley & Sons, UK.
This book is worth reading. It differentiates interaction design (ID) from the narrower scope of Human-Computer Interaction. Some of the best design elements as in the Apple iPod are discussed. Some of the controversial topics such as usability and attractiveness (aesthetics) are also discussed, particularly with reference to design of websites. The 'vanilla' websites that are the most usable and easy to navigate (and recommended by usability expert Nielsen) are no more attractive today, when users look for aesthetics and a pleasurable experience when visiting websites. Example would the website of Nike (nike.com). Compare it with Nielsen's website (useit.com).

Joseph Ponnoly