The Gold Prospector's Handbook is one of our favorites. Some of it is pretty advanced with regards to reading a stream, geology etc, but it's also loaded with information of use to the absolute beginner. This book will have a place on your shelf for years to come.
Covers geology, stream dynamics (where gold is likely to deposit in a watercourse), how to pan for gold, tools, etc. This is a non-technical but somewhat advanced prospecting book that will help you in your search for gold. Black, 176 pages, ISBN 0-935182-32-2