Book excerpt: The No-Nonsense Guide to Equality discusses the positive effects that equality can have, using examples and case studies from across the globe, including many from the United States. It examines the lessons of history and covers race, gender and ethnicity, age, and wealth. Danny Dorling considers, realistically, just how equal it is possible to be, the challenges we face, and the factors that will lead to greater equality for all. Danny Dorling is professor of human geography at the University of Sheffield, United Kingdom, and one of the leading international experts on inequality. He has written extensively about the widening gap between rich and poor and his work regularly appears in the Guardian. He is author of several books, including Injustice: Why Social Inequality Persists and The Atlas of the Real World.