We will be changing the text for the fall 2009 and beyond semesters for the courses 110.108-9 Calculus I-II (Phys. Sci. & Eng.). The old text was the red book at left: "Single Variable Essential Calculus" by James Stewart (ISBN-13: 9780495109556).
The new text comes from the same author, and is really simply the expanded version of the same material. It is "Single Variable Calculus: Early Transcendentals" (ISBN-13: 9780495011699).
The summer courses will continue to use the old text. Sorry for the inconvenience. This new choice will be stable for a while, we believe.