Books
Although the PDF documentation at this website describes some of the
algorithms in the source code at this site, the following books serve as a
better source of description. The Geometric Tools book is published by
Elsevier. The remaining books are published now by
CRC Press (Taylor & Francis Group).
The books mentioned below are still considered to be in print, but they
are too old to obtain useful information from them. I am posting these
just for the book corrections in case folks have purchased these books.