Inventorship: The Art of Innovation
Author: Leonard M. Greene
Publisher: John Wiley & Sons 2001
paper 256 pages $17.95
ISBN 0-471-41407-7

Patent It Yourself (11th ed.)
Author: David Pressman
Publisher: Nolo Press April 2005
paper 512 pages $49.99
ISBN 1-4133-0180-0

The Patent Drawing Book:
How to Make Patent Drawings Yourself
(3rd ed.)
Authors: Jack Lo & David Pressman
Publisher: Nolo Press Oct 2001
paper 256 pages $29.95
ISBN 0-87337-788-5