As of Week 3 I expect everyone to do some literature research for Assignment 2 and 3. You can substitute a required reading with a reading of your own, to be discussed in your Assignment 2 and 3 papers and in class. See http://www.acm.org/dl/ (search this with google and keyword ACM)
Chapter 3: The Power of Representations. Norman, D. (1993). In Things that Make Us Smart, 43-76, Addison-Wesley.
A Review and Taxonomy of Distortion-oriented Presentation Techniques. Leung, Y.K. & Apperley, M.D. (1994). In ACM TOCHI 1(2).