Social Choice Theory

Introductory:
C. R. Plott. Axiomatic social choice theory: An overview and interpretation. American Journal of Political Science, 20 (3):511–596, 1976.

Advanced:
A. K. Sen. Social choice theory. In K. J. Arrow and M. D. Intriligator, editors, Handbook of Mathematical Economics, volume 3, chapter 22, pages 1073–1181. Elsevier, 1986.

Game Theory

R. J. Aumann. Game theory. In J. Eatwell, M. Milgate, and P. Newman, editors, The New Palgrave: A Dictionary of Economics, volume 2, pages 460–482. MacMillan, 1987.

Writing

W. Thomson. The young person’s guide to writing economic theory. Journal of Economic Literature, 37(1): 157–183, 1999.