required textbooks

Helen Sharp, Yvonne Rogers, Jennifer Preece
Interaction Design: Beyond Human-Computer Interaction, 2nd edition.
Wiley, John & Sons, Incorporated. 2006.

Don Norman.
The {Design, Psychology, Psychopathology} of Everyday Things.
New York: Basic Books, 1988. (All variant titles are the same.)

recommended textbooks

Edward Tufte.
Envisioning Information.
Chesire, CT: Graphics Press, 1990.

Bruce Eckel
Thinking in Java (4th Edition), Pearson Education. 2006.