Showing: 1-10 results of 8278

by DK
A dazzling visual guide to precious and semiprecious stones, organic gems, and precious metals that showcases beautiful, specially commissioned images as well as science, natural history, mythology, and true stories of adventure and discovery. From diamonds and sapphires to emeralds and obsidian, Gem profiles all the key gemstones and other precious materials. Its stunning images show the jewels in their different cuts, colors, and... more...

From a renowned historian comes a groundbreaking narrative of humanity’s creation and evolution—a #1 international bestseller—that explores the ways in which biology and history have defined us and enhanced our understanding of what it means to be “human.” One hundred thousand years ago, at least six different species of humans inhabited Earth. Yet today there is only one—homo sapiens. What happened to the others? And... more...

An intrepid investigation into nature’s restorative benefits by a prize-winning author. For centuries, poets and philosophers extolled the benefits of a walk in the woods: Beethoven drew inspiration from rocks and trees; Wordsworth composed while tromping over the heath; and Nikola Tesla conceived the electric motor while visiting a park. Intrigued by our storied renewal in the natural world, Florence Williams set out to uncover... more...

How do meteorologists design forecasts for the next day's, the next week's, or the next month's weather? Are some forecasts more likely to be accurate than others, and why? Making Sense of Weather and Climate takes readers through key topics in atmospheric physics and presents a cogent view of how weather relates to climate, particularly climate-change science. It is the perfect book for amateur meteorologists and weather enthusiasts,... more...

The Earth's biodiversity-the rich variety of life on our planet-is disappearing at an alarming rate. And while many books have focused on the expected ecological consequences, or on the aesthetic, ethical, sociological, or economic dimensions of this loss, Sustaining Life is the first book to examine the full range of potential threats that diminishing biodiversity poses to human health. Edited and written by Harvard Medical School physicians Eric... more...


Compelling evidence links the chemicals in household products to cancer, asthma, allergies, multiple chemical sensitivity syndrome—also known as environmental illness—hormonal disruption, reproductive and developmental disorders, and other conditions. Yet cleaning products are exempt from the full ingredient disclosure on product labels as required for food and personal care products and enter the marketplace with... more...

Look around New York, and you’ll probably see birds: wood ducks swimming in Queens, a stalking black-crowned night-heron in Brooklyn, great horned owls perching in the Bronx, warblers feeding in Central Park, or Staten Island’s purple martins flying to and fro. You might spot hawks and falcons nesting on skyscrapers or robins belting out songs from trees along the street. America’s largest metropolis teems with birdlife in part... more...

by DK
What is the difference between a rock and a gem? What makes the Hope Diamond so special? Why are some minerals fluorescent? Dig deep to find the answers in The Rock and Gem Book. Filled with over 1,200 stunning full-color photographs, The Rock and Gem Book is the perfect encyclopedia for young geologists to consult. Chapters are organized according to scientific classifications with straightforward explanations that bring each... more...

Experience the world’s most wild, remote, beautiful places with shots by National Geographic photographers and vintage photos pulled from the National Geographic archives. Highlighting 50 of Earth’s most pristine, scenic locales, this beautiful book is illustrated with stunning images, coupled with accessible, engaging descriptions and practical travel information. The book covers everything from otherworldly, secluded valleys to far-flung,... more...

Detailed descriptions of insect orders, families, and many individual species are illustrated with 1,300 drawings and 142 superb color paintings. Illustrations - which use the unique Peterson Identification System to distinguish one insect from another - include size lines to show the actual length of each insect. A helpful glossary explains the technical terms of insect anatomy.