Books, Books, and More Books

It's lazy, I know, just to give a list of books, but here it goes anyway: I've been trying to understand foundational issues in geometry, and John Stillwell's book "The Four Pillars of Geometry" is terrific. It's strange that I could get through grad in math, and not understand how to take a square root geometrically.

Also Farin's book on "NURBS" is typeset wonderfully (probably using TeX) and is a pleasure to read.