Science speculates that the story of flintknapping may go back as far as two and one-half million years. While techniques may have evolved over the ages the basic principle is that of removing flakes of stone to form a tool, weapon, effigy, jewelry, or other items. It is a craft that spawned masters who were superb in their abilities to create useful and often very artistic pieces. This medium is practiced by relatively few artisans in the world today.

Adventures in Stone Artifacts: A Guide to Arrowheads & Other Artifacts   by Sandy Livoti, Jon Kiesa

The North American Indians in Early Photographs
by Paula Richardson Fleming, Judith Luskey

Cowboys, Indians, and Gunfighters : Story of the Cattle Kingdom
by Albert Marrin

The Complete Book of Fly Fishing
by Tom McNally