In this Very Short Introduction, Michael Land introduces all aspects of the eye and vision in both human and animals. He looks at the features of the human eye and retina, explores the evolution of eyes, and considers aspects of visual perception, including eye movements, vision in three dimensions, colour vision, and visual recognition.

An accessible introduction to the world's fifth largest religion, this work presents Sikhism's meanings and myths, and its practices, rituals, and festivals, also addressing ongoing social issues such as the relationship with the Indian state, the diaspora, and caste.

In the second edition of The U.S. Congress, Donald A. Ritchie, a congressional historian for more than thirty years, takes readers on a fascinating, behind-the-scenes tour of Capitol Hill, pointing out the key players, explaining their behavior, and translating parliamentary language into plain English. No mere civics lesson, this eye-opening book provides an insider's perspective on Congress, matched with a professional historian's analytical insight. After a swift survey of the creation of Congress by the constitutional convention, he begins to unscrew the nuts and pull out the bolts. What is it like to campaign for Congress? To attract large donors? To enter either house with no seniority? He answers these questions and more, explaining committee assignments and committee work, the role of staffers and lobbyists, floor proceedings, parliamentary rules, and coalition building. Ritchie explores the great effort put into constituent service-as representatives and senators respond to requests from groups and individuals-as well as media relations and news coverage. He also explores how the grand concepts we all know from civics class--checks and balances, advise and consent, congressional oversight--work in practice in an age of strong presidents and a muscular Senate minority.

The eye is one of the most remarkable achievements of evolution, and has evolved up to 40 times in different parts of the animal kingdom. In humans, vision is the most important sense, and much of the brain is given over to the processing of visual information. In this Very Short Introduction, Michael Land describes the evolution of vision and the variety of eyes found in both humans and animals. He explores the evolution of colour vision in primates and the workings of the human eye, to consider how that contributes to our visual ability. He explains how we see in three dimensions and the basic principles of visual perception, including our impressive capacity for pattern recognition and the ability of vision to guide action. 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.

Martin Heidegger (1889-1976) is probably the most divisive philosopher of the twentieth century. Considered by some to be the greatest charlatan ever to claim the title of 'philosopher', by some as an apologist for Nazism, he was also an acknowledged leader and central figure to many philosophers. Michael Inwood's lucid introduction to Heidegger's thought focuses on his most important work, 'Being and Time', and its major themes of existence in the world, inauthenticity, guilt, destiny, truth, and the nature of time. These themes are then reassessed in the light of Heidegger's later work, together with the extent of his philosophical importance and influence. This is an invaluable guide to the complex and voluminous thought of a major twentieth-century existentialist philosopher. 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.

Teeth are a vital component of vertebrate anatomy and a fundamental part of the fossil record. It was the evolution of teeth, associated with predation, that drove the evolution of the wide array of fish, amphibians, reptiles, and then mammals. Peter S. Ungar looks at how, without teeth, none of these developments could have occurred.