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.

    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.

    Not only are galaxies fascinatingastronomical structures in themselves, but their study has revealed much of what we know today about the cosmos, providing a window on the Big Bang and the origins of the Universe. Gribben looks at our own Milky Way Galaxy in detail, from the different kinds of stars that are born within it, tothe origins of its magnificent spiral structure. Perhaps most interesting, Gribben describes the many exciting discoveries have been made about our own galaxy and about those beyond: how a supermassive black hole lurks at the center of every galaxy, how enormous forces are released when galaxiescollide, how distant galaxies provide a window on the early Universe, and how the formation of young galaxies shed needed light on the mysteries of Cold Dark Matter.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.

    In this concise, crisply written guide, Patricia Aufderheide takes readers along the diverse paths of documentary history and charts the lively, often fierce debates among filmmakers and scholars about the best ways to represent reality and to tell the truths worth telling.Beginning with an overview of the central issues of documentary filmmaking--its definitions and purposes, its forms and founders--Aufderheide focuses on several of its key subgenres, including public affairs films, government propaganda (particularly the works produced during World War II), historical documentaries, and nature films. Her thematic approach allows readers to enter the subject matter through the kinds of films that first attracted them to documentaries, and it permits her to make connections between eras, as well as revealing the ongoing nature of documentary's corecontroversies involving objectivity, advocacy, and bias. Interwoven throughout are discussions of the ethical and practical considerations that arise with every aspect of documentary production. A particularly useful feature of the book is an appended list of 100 great documentaries that anyonewith a serious interest in the genre should see.Drawing on the author's four decades of experience as a film scholar and critic, this book is the perfect introduction not just for teachers and students but also for all thoughtful filmgoers and for those who aspire to make documentaries themselves.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.

    In this Very Short Introduction, Karen Radner sketches the history of Assyria from city state to empire, from the early 2nd millennium BC to the end of the 7th century BC. Since the archaeological rediscovery of Assyria in the mid-19th century, its cities have been excavated extensively in Iraq, Syria, Turkey and Israel, with further sites in Iran, Lebanon, and Jordan providing important information. The Assyrian Empire was one of the most geographically vast, socially diverse, multicultural, and multi-ethnic states of the early first millennium BC. Using archaeological records, Radner provides insights into the lives of the inhabitants of the kingdom, highlighting the diversity of human experiences in the Assyrian Empire. 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 book gives a succinct explanation of his metaphysical system, concentrating on the original aspects of his thought, which inspired many artists and thinkers including Nietzsche, Wagner, Freud, and Wittgenstein. Schopenhauer's central notion is that of the will--a blind, irrational force that he uses to interpret both the human mind and the whole of nature. Seeing human behavior as that of a natural organism governed by the will to life, Schopenhauer developed radical insights concerning the unconscious and sexuality which influenced both psychologists and philosophers

    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.

    As a concept and a practice, it has attracted the attention of theologians, anthropologists, psychologists, sociologists, artists, and historians over the centuries. This Very Short Introduction explains why. Magic has been defined in terms of the false religions of others, as an evolutionary stage in human thought, a universal state of mind, and a liberating expression of the imagination. For hundreds of millions of people today, no matter their religious persuasion, magic is a real force that helps them to overcome misfortune, poverty, and illness. Indeed, with magic as relevant today as it ever was, it raises questions about the meaning of human progress.

    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.

    It tackles many questions, such as: What accounts for the perpetuation of ethnic and religious conflict in Ireland? Why has armedviolence proven so hard to control? Who are the major figures and issues in the conflict? Can we expect more Northern Irelands in the future?

    Yet they are an oddity. They are considered wholesome, conservative, and friendly on one hand, and clannish, weird, and self-righteous on the other.Mormonism: A Very Short Introduction explains who Mormons are: what they believe and how they live their lives. Written by Richard Lyman Bushman, an eminent historian and practicing Mormon, this compact, informative volume ranges from the history of the Church of Jesus Christ of Latter-day Saints tothe contentious issues of contemporary Mormonism. Bushman argues that Joseph Smith still serves as the Mormons' Moses. Their everyday religious lives are still rooted in his conceptions of true Christianity. They seek revelation to solve life's problems just as he did. They believe the authority toseal families together for eternity was restored through him. They understand their lives as part of a spiritual journey that started in a council in heaven before the world began just as he taught. Bushman's account also describes the tensions and sorrows of Mormon life. How are Mormons to holdon to their children in a world of declining moral standards and rampant disbelief? How do rational, educated Mormons stand up to criticisms of their faith? How do single Mormons fare in a church that emphasizes family life? The book also examines polygamy, the various Mormon scriptures, and therenegade fundamentalists who tarnish the LDS image when in fact they're not members.In a time when Mormons such as Mitt Romney and Harry Reid are playing prominent roles in American society, this engaging introduction enables readers to judge for themselves how Mormon teachings shape the character of believers.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 trenchantand 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, theseries 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 andaffordable guide that will likely prove indispensable.

    The book discusses environmental issues including pollution control, reducing environmental damage, global climate change policies, questions about how we should balance environmental and economic considerations, and what form government policies should take. In recent years, Smith reveals, many economists have argued for greater use of incentives such as pollution charges and emissions trading rather than more traditional direct regulation of polluters. Including many illustrative case studies, this book offers an illuminating introduction to an exciting field of economics.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.

    But he did not intend the metaphysics to stand apart from his scientific work, which included important investigations into physics, mathematics, and optics. In this book, Sorell shows that Descarates was, above all, an advocate and practitioner of the new mathematical approach to physics, and that he developed his philosophies to support his discoveries in the sciences.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.

    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.

    People readily behave as amateur psychologists, offering explanations for what we think, feel, and do. But what exactly are psychologists trying to help us understand? What scientific grounding do they have for their approach? In Psychology: A Very Short Introduction, Dr. Gillian Butler and Dr. Freda McManus provide an understanding of some of psychology's leading ideas and their practical relevance. The authors answer some of the most frequently asked questions about psychology including: What is psychology? How do we use what is in the mind? How does psychology work? How do we influence each other? What can or can't a psychologist do for you? Psychology is a large part of our everyday experience, and this elemental guide is a stimulating introduction for anyone interested in understanding the human mind. 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.