Usable is not enough. Emotional design is the next level of user experience.
Here are some good references:
- Norman, D. A. (2004) Emotional Design. Why we love (or hate) everyday things.
- Chapman, Jonathan (2005) Emotionally Durable Design: Objects, Experiences and Empathy
- Greene, Jay (2010) Design is how it works. How Smartest Companies Turn Products into Icons
- Bean, Jeofrey Van Tyne, SeanThe Customer Experience Revolution. How Companies like Apple, Amazon, and Starbucks Have Changed Business Forever
- Norman, D. A. (2002) Emotion & Design: Attractive things work better. Interactions Magazine, ix (4), 36-42.
- The Guardian (2004), Emotional about design
- Van Gorp, Trevor (2010) Emotional Design with A.C.T. - Part 1. Defining Emotion, Personality and Relationship.
- Van Gorp (2007) Design for Emotion and Flow.
- Chastain, Cindy (2009) Experience Themes. How a storytelling method can help unify teams and create better products.
- Del Galdo, Elisa (2011) Persuasion in Design.
- Chisnell, Dana (2011) Pleasant Things Work Better.
- Chisnell, Dana (2010) Beyond Frustration: Three Levels of Happy Design
- Suttle, Kevin (2011) Beyond Emotion: Designing for Visceral Allure.