Skull Sourcebook explores the symbolism, meaning, and breathtaking, cultural art of the human skull, one of the most iconic symbols in the world.

The Sourcebook for Teaching Science is a unique, comprehensive resource designed to give middle and high school science teachers a wealth of information that wi

An exploration of the scientific, historical, and paranormal qualities of quartz crystals and ancient crystal skulls • Explores the use of crystals throughout

Darwin's theory of evolution was for more than a century dogged by a major problem: the evidence proving the connections between the main groups of organisms wa

A rich selection from the broad range of a prolific Native American writer's work.