National Geographic Visual Encyclopedia of Earth is the definitive guide to our incredible, ever-changing world. This is the single-volume reference every forward-looking library should include, sure to foster the next generation’s sense of connectedness with our world and to inspire the ecologists and scientists of tomorrow. Written by renowned international authority Michae...(展开全部)

Here is everything young readers want to know about dinosaurs and their world--in one magnificently illustrated, up-to-date family reference. Through dramatic graphics and age-appropriate text, this authoritative volume charts the discovery of all the main types of dinosaurs and reveals the latest details on how these creatures most likely looked, behaved, defended themselves, ...(展开全部)

National Geographic Prehistoric Mammals takes you on a prehistoric journey through time to visit some of the most amazing creatures to ever walk the Earth. See how mammals evolved from the time of the dinosaurs to the days of early humans. Learn what they ate, where they roamed, and how they took over the world that the dinosaurs left behind. When dinosaurs became extinct 65 mi...(展开全部)

National Geographic Prehistoric Mammals takes you on a prehistoric journey through time to visit some of the most amazing creatures to ever walk the Earth. See how mammals evolved from the time of the dinosaurs to the days of early humans. Learn what they ate, where they roamed, and how they took over the world that the dinosaurs left behind. When dinosaurs became extinct 65 mi...(展开全部)

This title offers a breathtaking and inspirational exploration of planet Earth. From the fiery mass of the Earth's core to the tip of the highest ice-capped mountain, explore every aspect of our planet in awe-inspiring photographic detail with the "Illustrated Encyclopedia of the Earth". Visit 400 of the tallest, longest, widest, most significant and most unusual physical featu...(展开全部)

Featuring a wealth of never-before-published NASA photographs, charts, stories, and contributions by NASA astronauts and experts, Space: A Visual Encyclopedia is a comprehensive exploration of space from our nearest planets and stars to far-off galaxies.

The Encyclopedia of Animals is a lavishly illustrated, authoritative, and comprehensive exploration of the rich and intriguing world of animals. Written by an international team of specialists, spectacularly adorned with a gallery of more than 2,000 color illustrations, and supplemented with distribution maps, detailed and beautifully rendered diagrams, and some of the world's ...(展开全部)

"NG Field Guide to the Birds of North America, 6th edition" contains the most all-new material since the first edition was published more than 25 years ago. The latest edition will include the following: 200 new art figures; first ever subspecies maps in a field guide; inclusion of extensive migrations information overlaid on species maps; field-mark labels on all artwork; text...(展开全部)

Birding is the fastest growing wildlife-related activity in the U.S., and even conservative estimates put the current number of U.S. birders at 50 million. According to the New York Times, some authorities predict that by 2050 there will be more than 100 million—and the National Geographic Field Guide to the Birds of North America will be the essential reference for field i...(展开全部)