Scott and Tacchi also discuss how mood disorders can influence creativity.

    With a look at diet in relation to nutrition, this Very Short Introduction provides an overview of the biochemistry of nutrition and the health risks associated with poor nutrition- including obesity and types of food allergies. It provides an essential guide to effectively understand the principles of, and necessary reasons for, a healthy diet.ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

    Yet media interest and extensive coverage has tended to hinder rather than help our understanding of Iran as an idea, an identity, and a people, leading to a superficial understanding of what is a complex and nuanced political culture and civilization. This Very Short Introduction presents a radical reinterpretation of Iranian history and politics, placing the Islamic Revolution in the context of a century of political change and social transformation. By considering the various factors that have contributed towards the construction of the idea of Iran and the complex identity of Iranians themselves, Ali Ansari steers a clear path towards a more realistic understanding for us all.ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

    Was late antiquity therefore merely a time of decline? In this vibrant and compact introduction, Gillian Clark shedslight on the concept of late antiquity and the events of its time, showing that this was in fact a period of great transformation. Late antiquity saw Roman law codified, Christian creeds formulated, the Talmud compiled, and the Qur'an composed. If the Goths sacked the city of Rome, the Vandalsbuilt churches in Africa and Attila the Hun received an embassy from Constantinople. Anthony of Egypt and Simeon Stylites offered spectacular new models of holiness, while Augustine and Basil and Benedict devised rules for monastic communities. Late antique artists produced the mosaics of Ravennaand the first dome of Hagia Sophia. And it was also the period when emperors Diocletian in the third century and Justinian in the sixth enacted extensive and much-needed reforms of government.

    From humble beginnings on the seven hills beside the Tiber, the city of Rome grew to dominate the ancient Mediterranean. Led by her senatorial aristocracy, Republican armies defeated Carthage and the successor kingdoms of Alexander the Great, and brought the surrounding peoples to east and west into the Roman sphere. In this Very Short Introduction, David M. Gwynn provides a fascinating introduction to the history of the Roman Republic, ranging from the origins of Rome and the vivid Roman legends that surround the foundations of the city, to the overthrow of the monarchy in 509 BC, the five hundred years of republican rule, the rise of Julius Caesar and Caesar Augustus, and the establishment of the Principate. Gwynn considers the political structure of the Republic, including its unique constitution, and he highlights literary and material sources, bringing to life the culture and society of Republican Rome. He also reflects on the Roman values and beliefs of the time, in order to shed light on the Republic's dramatic rise and fall. Finally, Gwynn reflects on the remarkable legacy of the Roman Republic, including its modern-day resonance and legacy in literature and in film, where it is often presented as a model, a source of inspiration, but also a warning.

    Readers meet a people highly skilled in sculpture, astronomy, city planning, poetry, and philosophy, who were also profoundly committed tocosmic regeneration through the thrust of the ceremonial knife and through warfare. Dav�d Carrasco looks beyond Spanish accounts that have colored much of the Western narrative to let Aztec voices speak about their origin stories, the cosmic significance of their capital city, their methods of childrearing, and the contributions women made to daily life and the empire. Carrasco discusses the arrival of the Spaniards, contrasts Aztec mythical traditions about the origins of their city with actual urban life in Mesoamerica, and outlines the rise of the Aztec empire. He also explores Aztecreligion, which provided both justification for and alternatives to warfare, sacrifice, and imperialism, and he sheds light on Aztec poetry, philosophy, painting, and especially monumental sculpture and architecture. He concludes by looking at how the Aztecs have been portrayed in Western thought, art, film, and literature as well as in Latino culture and arts.

    They are the oldest forms of life and the most prolific of all living organisms, inhabiting every part of the Earth's surface, its ocean depths, and even such inhospitable places as boiling hot springs. In this Very Short Introduction, bacteriologist Sebastian Amyes explores the nature of bacteria, their origin and evolution, bacteria in the environment, and bacteria and disease. Amyes discusses some of the major infections caused by bacteria-bacteria causes pneumonia, diphtheria, cholera, and many other diseases-and shows how these pathogens avoid the defences of the human body. But the book looks at all aspects of bacteria, not just the negative side, stressing the key benefits of bacteria, which have been harnessed to preserve food, dispose of waste and to provide compost for horticulture. Indeed, life for man and for many animals would be impossible without bacteria. Amyes also offers a glance into the future, describing how bacteria might be manipulated to perform tasks that they previous were unable to perform and discussing the recent construction of a completely synthetic bacterial cell. About the Series: Oxford's Very Short Introductions series offers concise and original introductions to a wide range of subjects--from Islam to Sociology, Politics to Classics, Literary Theory to History, and Archaeology to the Bible. Not simply a textbook of definitions, each volume in this series provides trenchant and provocative--yet always balanced and complete--discussions of the central issues in a given discipline or field. Every Very Short Introduction gives a readable evolution of the subject in question, demonstrating how the subject has developed and how it has influenced society. Eventually, the series will encompass every major academic discipline, offering all students an accessible and abundant reference library. Whatever the area of study that one deems important or appealing, whatever the topic that fascinates the general reader, the Very Short Introductions series has a handy and affordable guide that will likely prove indispensable.

    Looking at the reality behind these images, this Very Short Introduction illuminates the historical background against which the silk road flourished, shedding light on the importance of old-world cultural exchange to Eurasian and world history.On the one hand, historian James A. Millward treats the silk road broadly, to stand in for the cross-cultural communication between peoples across the Eurasian continent since at least the Neolithic era. On the other, he highlights specific examples of goods and ideas exchanged between the Mediterranean, Persia, India, and China, along with the significance of these exchanges. While including silks, spices, and travelers' tales of colorful locales, the book explains the dynamics of Central Eurasian history that promoted Silk Road interactions--especially the role of nomad empires--highlighting the importance of the biological, technological, artistic, intellectual, and religious interchanges across the continent. Millward shows that these exchanges had a profound effect on the old world that was akin to, if not on the scale of, modern globalization. He also disputes the idea that the silk road declined after the collapse of the Mongol empire or the opening of direct sea routes from Europe to Asia, showing how silk road phenomena continued through the early modern and modern expansion of the Russian and Chinese states across Central Asia.Millward concludes that the idea of the silk road has remained powerful, not only as a popular name for boutiques and restaurants, but also in modern politics and diplomacy, such as U.S. Secretary of State Hilary Clinton's Silk Road Initiative for India, Pakistan, and Afghanistan.

    But as Morris Rossabi reveals in this VeryShort Introduction, within two generations of their bloody conquests, the Mongols evolved from conquerors and predators to wise rulers who devised policies to foster the economies of the lands they had subjugated. By adopting political and economic institutions familiar to the local populations andrecruiting native officials, they won over many of their non-Mongol subjects. In addition, Mongol nobles were ardent patrons of art and culture, supporting the production of Chinese porcelains and textiles, Iranian tiles and illustrated manuscripts, and Russian metalwork. Perhaps most important, thepeace imposed by the Mongols on much of Asia and their promotion of trade resulted in considerable interaction among merchants, scientists, artists, and missionaries of different ethnic groups--including Europeans. Modern Eurasian and perhaps global history starts with the Mongol empire.

    From the thirteenth to the twentieth centuries, they ruled much of Central Europe, and for two centuries were also rulers of Spain. Through the Spanish connection, they acquired lands around the Mediterranean and a chunk of the New World, spreading eastwards to include the Philippines. Reaching from South-East Asia to what is now Ukraine, the Habsburg Empire was truly global.In this Very Short Introduction Martin Rady looks at the history of the Habsburgs, from their tenth-century origins in Switzerland, to the dissolution of the Habsburg Empire in 1918. He introduces the pantheon of Habsburg rulers, which included adventurers, lunatics, and at least one monarch who was so malformed that his true portrait could never be exhibited. He also discusses the lands and kingdoms that made up the Habsburg Empire, and the decisive moments that shaped their history. Dynasty, Europe, global power, and the idea of the multi-national state all converge on the history of the Habsburg Empire. Martin Rady shows how.ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

    This Very Short Introduction presents a succinct guide to the key episodes in that story - from the very origins of life four million years ago to the extraordinary diversity of species around the globe today.Beginning with an explanation of the controversies surrounding the birth of life itself, each following chapter tells of a major breakthrough that made new forms of life possible: including sex and multicellularity, hard skeletons, and the move to land. Along the way, we witness the greatest mass extinction, the first forests, the rise of modern ecosystems, and, most recently, conscious humans.Introducing ideas from a range of scientific disciplines, from evolutionary biology and earth history, to geochemistry, palaeontology, and systematics, Michael Benton explains how modern science pieces the evidence in this vast evolutionary puzzle together, to build up an accessible and up-to-date picture of the key developments in the history of life on earth.

    Moreover, groundbreaking research on genes, and especially key families of genes such as the Homeobox genes which controlthe development of body plans, has led to radical changes in the classification of animals. In this Very Short Introduction, Peter Holland presents a cutting-edge tour of the animal kingdom, providing an authoritative summary of the modern view of animal life, its origins, and the new classificationresulting from DNA studies. Beginning with the definition of animals (not obvious in biological terms), Holland takes the reader through the revolutionary new high-level groupings of animals (phyla) based on evolutionary relationships and ancestry. Ranging from corals and sponges to nematodes, seasquirts, and vertebrates, and illuminating many key topics in zoology, this fascinating, brief overview will be of great value to all students of the life sciences as well as providing a concise summary for the interested lay reader.

    In this lively and compact introduction, astrophysicist Andrew King reveals how the laws of physics force stars to evolve, driving them through successive stages of maturity before their inevitable and sometimes spectacular deaths, to end as remnants such as black holes. The book shows how we know what stars are made of, how gravity forces stars like the Sun to shine by transmuting hydrogen into helium in their centers, and why this stage is so long-lived and stable. Eventually the star ends its life in one of just three ways, and much of its enriched chemical content is blasted into space in its death throes. Every dead star is far smaller and denser than when it began, and we see how astronomers can detect these stellar corpses as pulsars and black holes and other exotic objects. King also shows how astronomers now use stars to measure properties of the Universe, such as its expansion. Finally, the book asks how it is that stars form in the first place, and how they re-form out of the debris left by stars already dead. These birth events must also be what made planets, not only in our solar system, but around a large fraction of all stars.

    They changed the course of history, but the myth theyestablished was even stranger than their real achievements. This Very Short Introduction deploys the latest scholarship to shatter and replace the traditional narrative. Chapters explore New World civilizations prior to the invasions, the genesis of conquistador culture on both sides of theAtlantic, the roles black Africans and Native Americans played, and the consequences of the invasions. The book reveals who the conquistadors were and what made their adventures possible.

    It contains more than 99% of the world's living space, produces half of its oxygen, plays a critical role in regulating its climate, and supports a remarkably diverse and exquisitely adapted array of life forms, from microscopic viruses, bacteria, and plankton to the largest existing animals. In this unique Very Short Introduction, biologist Philip Mladenov provides a comprehensive overview of marine biology, offering a tour of marine life and marine processes that ranges from the polar oceans to tropical coral reefs, and from shoreline mollusks to deep-sea hydrothermal vents. Mladenov also looks at a number of factors that pose a significant threat to the marine environment and to many of its life forms-threats such as overfishing, coastal development, plastic pollution, oil spills, nutrient pollution, the spread of exotic species, and the emission of climate changing greenhouse gases. Throughout the book he successfully weaves around the principles of marine biology a discussion of the human impacts on the oceans and the threats these pose to our welfare. About the Series: Oxford's Very Short Introductions series offers concise and original introductions to a wide range of subjects--from Islam to Sociology, Politics to Classics, Literary Theory to History, and Archaeology to the Bible. Not simply a textbook of definitions, each volume in this series provides trenchant and provocative--yet always balanced and complete--discussions of the central issues in a given discipline or field. Every Very Short Introduction gives a readable evolution of the subject in question, demonstrating how the subject has developed and how it has influenced society. Eventually, the series will encompass every major academic discipline, offering all students an accessible and abundant reference library. Whatever the area of study that one deems important or appealing, whatever the topic that fascinates the general reader, the Very Short Introductions series has a handy and affordable guide that will likely prove indispensable.