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Throughout the Middle Ages, various empires reigned across Europe, the Middle East, and Asia that had a lasting impact on the world. This series details the rise and fall of these civilizations, the communication and relationship between those that overlapped, the lifestyles and cultures of the people who lived under them, and their accomplishments and contributions to art, religion, warfare, and other fields.

This series is an instant reference source for today's students eager to learn about endangered animals. Students will be able to turn to this series for almost any report. Arranged in an almanac format, each book incorporates essential facts displayed in a variety of manners.

Some of history’s Enduring Mysteries involve tales so incredible that they blur the lines between fact and fiction. As much evidence as can be examined about the curious phenomena associated with five legendary sites and creatures is explored in this series, with notable examples of popular culture references and famous seekers and hoaxes. The truth is out there—for someone to find.

The energy industry is evolving-and fast. Find out why fossil fuels are being fast-tracked into history and how cleaner, greener, and science-smart energy is helping us build a sustainable future. This exciting and informative science series explores the harm fossil fuels have caused our planet and explains why it is so important that we replace them with sustainable energy. Discover the very latest, cutting-edge science and technology that is allowing the energy industry to undergo a green revo

This series takes a future tense perspective on the energy issues that underlie the problems of today. With opportunities available to Mankind in the area of biofuels, energy mixing, and resource management, this series uses consistent Pro/Con features to illustrate to readers the need for good stewardship and leadership.

Today, engineers are creating ever-evolving technology to help us improve every aspect of our lives. This series explores great engineering evolutions from past to present, along with the potential transformations of the future. It uncovers how the great engineering minds of early and modern civilizations have invented technology to create amazing buildings, allow us to travel further and faster, harness energy, study the stars, combat natural disasters, and create military machinery. Readers wi

Through the use of concrete, real-world examples and stories, this series explores various environmental concerns and the consequences of each. Books look at what is taking place; where, how, and why; the effect(s) now; the likely future effects; and what’s being done or proposed to address these issues. All books include an appendix list titled ôMake a Difference.ö These lists offer realistic suggestions to teen readers who want to act.

More than 450 million people worldwide watch esports each year. That is more than the number of people who watch Netflix, Hulu, ESPN, and HBO combined-and the esports audience keeps growing. Esports and the New Gaming Culture examines the cultural phenomenon that is esports. The book explores the world of professional gamers and teams, the competitions, the spectators, the business of pro gaming, and even the interscholastic programs-all of which make up this exciting revolution in spectator spo

The nations of Earth form a complex and diverse tapestry. From the rocky terrain of New Zealand3s volcanic islands to Spain3s historic architecture, and from the arid Kalahari Desert stretching across South Africa to the lively markets of Thailand, the world3s countries feature a stunning variety of landscapes, wildlife, histories, and cultures. Essential Library of Countries explores a broad selection of these nations, examining what makes each a unique and important part of our world.