A geology expert explains how to tell rocks from minerals and then shares secrets of spotting sulfides, chromates, igneous and metamorphic rocks, and more. "Designed for beginners and experienced collectors alike, DK's Smithsonian Handbook of Rocks and Minerals' explains what rocks or minerals are, how they are classified, and how to start a collection. A clear visual key illustrates the differences between igneous, metamorphic, and sedimentary rocks,...

This book tells the story of Pteranodon. During the late Cretaceous period, between 89 and 80 million years ago, one of the largest flying reptiles to exist flew in the skies. Its large wingspan and short tail made it very agile so it could turn or dive quickly. Its head could measure nearly six feet (two meters) long and on the back of its head grew a magnificent crest.

This book tells the story of Stegosaurus, who lived during the Jurassic period between 155 and 145 million years ago. It had large bony plates, which it probably used for temperature control, soaking up the sun, or catching a cool breeze.

Realistic illustrations highlight this story about a day in the life of the woolly mammoth. Created in collaboration with the Smithsonian Institution, information sections give all the vital statistics about the woolly mammoth.

Review the rich tradition of innovation in America. Then zero in on two remarkable achievements: the Wright brothers' airplane and the Apollo flights to the Moon. View an actual astronaut glove worn on Apollo 8, the first mission to orbit the Moon.

Examine four key artifacts that tell the story of America on the move: the Conestoga wagon; the John Bull steam locomotive; the Ford Model T; and Charles Lindbergh's airplane, the Spirit of St. Louis. Each represents a technology that profoundly altered the nation.

Starting with a set of slave shackles, chart the history of slavery in the Americas. Discover how the invention of the cotton gin helped expand slave labor. Then follow the story of African-American abolitionist Harriet Tubman, as told through some of her treasured personal belongings.

Americans have always blended politics and song. Trace the rise of three great voices in this tradition: Marian Anderson, Woody Guthrie, and Bob Dylan. Among other touchstones of their era, see the mink coat that Anderson wore at a celebrated concert on the National Mall in 1939.

Study relics and documents related to the emancipation of slaves during the Civil War era, culminating with General Lee's surrender at Appomattox. Also hear poignant stories told by a selection of artifacts from the Smithsonian's National Museum of African American History and Culture.

Peer into powerful faces from the past, including those of Pocahontas, Frederick Douglass, and the female factory worker apocryphally known as Rosie the Riveter, who appears on an iconic poster from World War II. Also inspect another icon: the signature stovepipe hat worn by Abraham Lincoln.