Setting out from Carthaginian-dominated Spain with a small army of select troops, he fought his way over the Pyrenees and crossed the Alps with elephants and a full baggage train. Theodore Dodge retraced this route from Carthage to Italy, paying particular attention to the famous crossing of the Alps, and wrote what remains unequalled as the most comprehensive and readable study of history's greatest general.

    It explains what algorithms do, how they are used, the risks associated with using them, and why governments should be concerned. Important areas arehighlighted, such as Stream Ciphers, block ciphers, public key algorithms, digital signatures, and applications such as e-commerce. This book highlights the explosive impact of cryptography on modern society, with, for example, the evolution of the internet and the introduction of more sophisticatedbanking methods.

    What is communism? Where did the idea come from and what attracted people to it? Is there a future for communism? This Very Short Introduction considers these questions and more in the search to explore and understand this controversial political force.Explaining the theory behind its ideology, and examining the history and mindset behind its political, economic and social structures, Leslie Holmes considers the evolution of communism from Marx's time, to its practice in the Bolshevik Revolution, to its collapse in 1989-91. Holmes highlights theinner dynamics, crises, and demise of communism as a global system, and introduces the major players in the communist world, including Marx, Lenin, Stalin, and Mao.About the Series: Combining authority with wit, accessibility, and style, Very Short Introductions offer an introduction to some of life's most interesting topics. Written by experts for the newcomer, they demonstrate the finest contemporary thinking about the central problems and issues in hundredsof key topics, from philosophy to Freud, quantum theory to Islam.

    The growing number of patients being diagnosed with depression, ADD, alcoholism, and other illnesses mean that few people are not touched by it. This book provides a valuable and comprehensible introduction to the subject. It starts with the history of its development as a scientific field, including the identification of major mental illnesses, the rise and fall of the asylum system, and the flourishing of psychoanalysis and other psychotherapies. More than any other branch of medicine, psychiatry has been attacked and criticized. There is a long list of perceived horrors--patient abuse, bizarre medical experiments, mind-control by evil governments, coercion by maniacal hypnotists. Modern psychiatry brings with it new controversies, such as the perceived over-prescription of antidepressants and behavior modifiers for children and teens, or unchecked marketing power of drug companies. This book does not draw conclusions on these issues, but rather provides the reader with a clear understanding of what psychiatry is, and what it does, so that they can draw their own. It is a great reference for anyone with an interest in mental illness and its treatment, students of psychiatry, medicine, psychology, and history of science, and health professionals.

    Looking at texts ranging from the Gospels from NagHammadi to the Dialogues with the Risen Savior, Paul Foster shows how the apocryphal gospels reflect the diversity that existed within early Christianity, and considers the extent to which they can be used to reconstruct an accurate portrait of the historical Jesus. Foster demonstrates how closeanalysis of text, contents, and context are vital in assessing the value and authenticity of such ancient documents. Including discussions of controversies and case-studies such as the alleged hoax surrounding the discovery of Secret Mark, Foster concludes that the non-canonical texts, considered inthe correct context, can help us reach a more complete understanding of the multi-faceted nature of early Christianity.About the Series: Combining authority with wit, accessibility, and style, Very Short Introductions offer an introduction to some of life's most interesting topics. Written by experts for the newcomer, they demonstrate the finest contemporary thinking about the central problems and issues in hundredsof key topics, from philosophy to Freud, quantum theory to Islam.

    He saw that Mediterranean history, under Rome's influence, was becoming an organic whole, so he starts his work in 264 B.C. with the beginning of Rome's clash with African Carthage, the rival imperialist power, andends with the final destruction of Carthage in 146 B.C.

    In this Very Short Introduction, engineer David Muir Wood turns a spotlight on a field that we often take for granted. He sheds light on the nature and importance of civil engineering in the history of civilization and urbanization, outlines its many accomplishments in the modern era, and points to the hurdles that civil engineering will face in the future. Beginning with the task of creating a settlement on a deserted island, Muir Wood sets out the problems that civil engineers face every day, highlighting the social and environmental challenges as well as the grasp of science and technology needed to craft buildings, bridges, tunnels, houses, and areas of recreation. The author also profiles the lives of some of the major civil engineers, such as Isambard Kingdom Brunel, the acclaimed builder of steamships, railways, and tunnels, and Sir Joseph Bazalgette, whose sewer system in central London was instrumental in relieving the city from cholera epidemics. Finally, Muir Wood considers the growing difficulty of managing our water and energy supplies, and he looks at the engineering profession's increased sensitivity to building and the environment.

    This Very Short Introduction provides an accessible, thoughtful and thought-provoking introduction to major debates around sexuality in the modern world, highlighting the social and political aspects of sexuality. It critically explores different ways of defining and thinking about sexuality and shows that many of our assumptions about what is "natural" in the sexual domain have, in reality, varied greatly in different historical or cultural contexts. The volume also examines ways in which governments have tried to regulate citizens' sexualities in the past-through policies and laws concerning public health, HIV/Aids, prostitution, and sex education-paying special attention to the particular zeal with which women's sexuality has been policed. The volume concludes by discussing political activism around sexuality more widely, focusing on the ways in which feminists, lesbians and gay men, as well as religious fundamentalists have transformed our ways of thinking about sexuality in the past few decades. About the Series: Combining authority with wit, accessibility, and style, Very Short Introductions offer an introduction to some of life's most interesting topics. Written by experts for the newcomer, they demonstrate the finest contemporary thinking about the central problems and issues in hundreds of key topics, from philosophy to Freud, quantum theory to Islam.

    Without it, there would be no science or technology. There would be no moral responsibility either, as none of our thoughts would be connected with our actions and none of our actions with any consequences. Nor would we have a system of law because blame resides only in someone having caused injury or damage.Any intervention we make in the world around us is premised on there being causal connections that are, to a degree, predictable. It is causation that is at the basis of prediction and also explanation. This Very Short Introduction introduces the key theories of causation and also the surrounding debates and controversies.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.

    Short, clear discussions on the mechanical workings of the brain are offered and the details of brain science are covered in an accessible style. Explanations of the more familiar implications of the brain's actions, such as memories, perceptions, and motor control are integrated throughout the book. It has chapters on brain processes and the causes of "altered mental states," as well as a final chapter that discusses possible future developments in neuroscience, touching on artificial intelligence, gene therapy, the importance of the Human Genome Project, drugs by design, and transplants. Up-to-date coverage of the newest developments in brain research and suggestions for future research on the brain are also included. About the Series: Combining authority with wit, accessibility, and style, Very Short Introductions offer an introduction to some of life's most interesting topics. Written by experts for the newcomer, they demonstrate the finest contemporary thinking about the central problems and issues in hundreds of key topics, from philosophy to Freud, quantum theory to Islam.

    Indeed, from childhood most of us develop some mental image of a witch--usually an old woman, mysterious and malignant. But why do witches still feature so heavily in our cultures and consciousness? From Halloween superstitions to literary references such as Faust and, of course, Harry Potter, witches seem ever-present in our lives. In this Very Short Introduction, Malcolm Gaskill takes a long historical perspective, from the ancient world to contemporary paganism. This is a book about the strangeness of the past, and about contrasts and change; but it's also about affinity and continuity. He reveals that witchcraft is multi-faceted, that it has always meant different things to different people, and that in every age it has raised questions about the distinction between fantasy and reality, faith and proof. Delving into court records, telling anecdotes, and challenging myths, Gaskill re-examines received wisdom, especially concerning the European witch-hunts of the sixteenth and seventeenth centuries. He also explores the modern memory and reinvention of witchcraft--as history, religion, fiction, and metaphor.

    This engaging overview of the field combines an accessible account of some of the discipline's guiding principles and methodology with abundant examples and illustrations of anthropologists at work. Peter Just and John Monaghan begin by discussing anthropology's most important contributions to modern thought: its investigation of culture as a distinctively human characteristic, its doctrine of cultural relativism, and its methodology of fieldwork and ethnography. Drawing on examples from their own fieldwork in Indonesia and Mesoamerica, they examine specific ways in which social and cultural anthropology have advanced our understanding of human society and culture. Including an assessment of anthropology's present position, and a look forward to its likely future, Social and Cultural Anthropology will make fascinating reading for anyone curious about this social science. About the Series: Combining authority with wit, accessibility, and style, Very Short Introductions offer an introduction to some of life's most interesting topics. Written by experts for the newcomer, they demonstrate the finest contemporary thinking about the central problems and issues in hundreds of key topics, from philosophy to Freud, quantum theory to Islam.

    It is a word with which we are universally familiar, and a condition that haunts the human imagination. In this Very Short Introduction, Andrew Scull provides a provocative and entertaining examination of the social, cultural, medical, and artistic responses to mental disturbance across more than two millennia, concluding with some observations on the contemporary accounts of mental illness. He shows that through the centuries, in poetry and in prose, in drama and in the visual arts, madness has been on display for all to see. He also describes how a whole industry has grown up, devoted to its management and suppression. Perhaps most important, he conveys how madness profoundly disturbs our common sense assumptions; threatens the social order, both symbolically and practically; creates almost unbearable disruptions in the texture of daily living; and turns our experience and our expectations upside down. Throughout this fascinating history, many fascinating and arresting pictures illuminate the overall portrait of madness in its various contexts.

    Justinian, the great law-giver, appears as a hateful tyrant, wedded to an ex-prostitute, Theodora; and Belisarius, the brilliant general whose secretary Procopius had been, is seen as the pliable dupe of his wife Antonina, a woman as corrupt and scheming as Theodora herself.

    Featuring many striking photos, this Very Short Introduction offers a fascinating portrait of the unique world of each planet as well as an illuminating discussion of moons, asteroids, and Trans-Neptunian objects. Leading planetary scientist David A. Rothery, who has chaired the European Space Agency's Mercury surface and composition working group since 2007, gives a stimulating overview of the origin, nature, and evolution of our Solar System, including the controversial issues of what qualifies as a planet, and what conditions are required for a planetary body to support life. He explains how the surfaces of planets and moons have been sculpted by geology, weather, and impacts by meteors and asteroids. Rothery shows how our knowledge has advanced over the centuries, and how it has expanded at a dramatic rate in recent years, going far beyond our Solar System to explore planets orbiting distant stars.