I am a Graphic Designer by trade. In the last 5 plus years I have been specializing in user-centric design for various web-interfaces and devices. My skills vary from creating initial design concepts, user interface design, wire-frames, mood boards, to the implementation of finalized designs/prototypes in HTML/CSS.
Here are some good links:
- Dieter Rams: Ten Principles of Good Design
(http://www.vitsoe.com/en/re/about/dieterrams/gooddesign) - Ten Usability Heuristics by Jakob Nielsen
(http://www.useit.com/papers/heuristic/heuristic_list.html) - Google User Experience
(http://www.google.com/corporate/ux.html)