Selling :
MATH -CS books
MATH 51: Linear Algebra - Levansdosky ($30)
MATH 53: Differential Equations - ($50)
CS 161: Algorithm Design - Kleinberg

STATS ECON books
STATS 203/209: Statistical Models - Freedman
STATS 191: Regression Analysis by Example - Chatterjee
ECON 118: Development Economics - Ray
ECON 118: Understanding Poverty
ECON 203/203N: Game Theory - Fudenberg, Tirole
ECON 202/203: Microeconomic Analysis - Varian (3rd Edition)
ECON 202/203: Microeconomic Theory - Colell-Whinston-Green

Physics:
Quantum Mechanics - Griffith
EM - Griffith

Renting:
CS 161: Algorithms - Cormen