Science

Granite pegmatite crystals have long been admired by gem and mineral collectors as a source of fine specimens and gem materials. Pegmatites can hos...

This guide to celestial navigation has been popular ever since it first appeared in 1969. Revised in 1982, Celestial Navigation is a quick, easy, a...

One of the biggest-selling titles in the Introducing series, J.P. McEvoy and Oscar Zarate''s utterly brilliant Introducing Quantum Theory explores ...

Over 500 color images and engaging text provide insight into these interesting collectibles from out of this world. Meteorites link back to the ear...

Bears are a symbol of strength in many cultures, and the sitting bear is no exception. Carve your own soapstone sitting bear and see its many chara...

This two-volume set is an essential reference work dedicated to clock companies that have kept time for us from the late 1600s through the early 20...

Beryl in its many color varieties is a favorite of both mineral collectors and gemologists. Superb examples are found at many locales worldwide, ma...

In this book, Chris Carter shows that evidence of life beyond death exists and has been around for millennia, predating any organized religion. Foc...

Answers at your fingertips to the essentials of a subject that is challenging at best and that many students struggle with. The 6 page laminated gu...