what year?
so far i've used (for both years):
- Physiology of Behaviour, by N.R. Carlson
- Biological Psychology by J.W Kalat
- Michael Eysenck’s Principles of Cognitive Psychology
- Eysenck and Keane’s Cognitive Psychology: A Student’s Handbook
- Mitchell, P. and Ziegler, F. (2007) Fundamentals of Development: The Psychology of Childhood
- Hogg, M.A. and Vaughan, G.M. (2005) Social Psychology, 4 th edition
- Discovering Statistics Using SPSS by Andy Field
- SPSS Without Maths
Those are the books I've used in the last 2 years, will probably use some of them for 3rd year as well.
You don't need to buy these books, I'm sure your uni libraries will have them all, but obviously if everyone on your course wants them, there'll be high demand. But then, most 2nd years and 3rd years will be selling their books cheaper so that's also helpful. One other thing you can do is try blackwells, they sell used books at a discounted price, the used books will obviously state their used, but normally they'll have a green sticker/band on them (used to work there).