All books $20; willing to negotiate, especially if you want multiple!.

Engr14: Statics: Analysis and Design of Systems in Equilibrium (Sheppard, Mitiguy)

Engr40: Circuits (Ulaby and Maharbiz)

Physics 40 series: Physics: A Strategic Approach (Volumes 1, 2, 3)

Biodesign (Zenios, Makower, Yock; $30)

Vector Calculus (Susan Colley)

Differential Equations (Brannan, Boyce)

Linear Algebra (Steven Levandosky)

ME80: Mechanics of Materials (RC Hibbeler)

Psych 1 (looseleaf version; $10)