This comprehensive pocket guide is the perfect introduction to finding, identifying, and collecting fossils. It features more than 500 species of plant and animal fossils, from trilobites to dinosaurs, to fossil trees. Over 1,000 photographs, most o…

Learn all there is to know about exquisite and precious gemstones of the world. Gemstones features over 800 incredible images and richly detailed descriptions. Included are more than 130 varieties of cut and uncut stones, organic gemstones, and pre…