And it's the perfect reference for Trainers looking to master the world of  Pokémon Go.

    For millennia it has been worshipped as a god; for centuries used as a tool of imperial expansion; today it is the cement of Pakistans fractious union. Five thousand years ago, a string of sophisticated cities grew and traded on its banks. In the ruins of these elaborate metropolises, Sanskrit-speaking nomads explored the river, extolling its virtues in Indias most ancient text, the Rig-Veda. During the past two thousand years a series of invaders Alexander the Great, Afghan Sultans, the British Raj made conquering the Indus valley their quixotic mission. For the people of the river, meanwhile, the Indus valley became a nodal point on the Silk Road, a centre of Sufi pilgrimage and the birthplace of Sikhism. Empires of the Indus follows the river upstream and back in time, taking the reader on a voyage through two thousand miles of geography and more than five millennia of history redolent with contemporary importance.

    It gives full details of exactly how to play the game, explains basic theory and includes many examples of play.

    With more than six thousand entries,The New Dictionary of Cultural Literacy is that invaluable source. Wireless technology. Gene therapy. NAFTA. In addition to the thousands of terms described in the original Dictionary of Cultural Literacy, here are more than five hundred new entries to bring Americans' bank of essential knowledge up to date. The original entries have been fully revised to reflect recent changes in world history and politics, American literature, and, especially, science and technology. Cultural icons that have stood the test of time (Odysseus, Leaves of Grass, Cleopatra, the Taj Mahal, D-Day) appear alongside entries on such varied concerns as cryptography, the digital divide, the European Union, Kwanzaa, pheromones, SPAM, Type A and Type B personalities, Web browsers, and much, much more. As our world becomes more global and interconnected, it grows smaller through the terms and touchstones that unite us. As E. D. Hirsch writes in the preface, "Community is built up of shared knowledge and values -- the same shared knowledge that is taken for granted when we read a book or newspaper, and that is also taken for granted as part of the fabric that connects us to one another." A delicious concoction of information for anyone who wants to be in the know, The New Dictionary of Cultural Literacy brilliantly confirms once again that it is "an excellent piece of work . . . stimulating and enlightening" (New York Times) -- the most definitive and comprehensive family sourcebook of its kind.

    A comprehensive overview of all of Marvel's greatest heroes and villains furnishes profiles of more than one thousand characters that document their individual superpowers and their careers, in a reference that traces the history of Marvel Comics and encompasses stunning artwork by some of Marvel's greatest artists.