Symbiosis, the sustained and intimate associations between unrelated life forms, is now recognized as a ubiquitous phenomenon, one that has shaped evolution since the origin of life and that continues to affect all species. This overview of symbiosis starts with a quick history of relevant early discoveries and researchers, and considers why symbiosis was so long neglected as a respectable topic of biological research and why it was a controversial topic. Today, symbiosis is widely appreciated as being everywhere in nature and as a pervasive influence on ecological communities.

In this new edition, Steve Bruce discusses the continuing arguments for social egalitarianism, considering issues such as gay marriage, women in combat roles, and the 2010 Equality Act to debunk contemporary arguments against parity. As gender divisions are increasingly questioned, he looks ahead to the likely consequences of this for society.

Postcolonialism explores the political, social, and cultural effects of decolonization, continuing the anti-colonial deconstruction of Western dominance. This Very Short Introduction discusses both the history and key debates of postcolonialism, and considers its importance as a means of changing the way we think about the world. Robert J. C. Young examines the key strategies that postcolonial thought has developed to engage with the impact of sometimes centuries of Western political and cultural domination.

The concept of law lies at the heart of our social and political life. Legal philosophy, or jurisprudence, explores the notion of law and its role in society, illuminating its meaning and its relation to the universal questions of justice, rights, and morality. In this Very Short Introduction audiobook, Raymond Wacks analyzes the nature and purpose of the legal system and the practice by courts, lawyers, and judges.

In Politics: A Very Short Introduction, Kenneth Minogue begins with a discussion of issues arising from a historical account of politics and goes on to offer chapters dealing with the Ancient Greeks and the idea of citizenship; Roman law; medieval Christianity and individualism; freedom since Machiavelli and Hobbes; the challenge of ideologies; democracy, oligarchy, and bureaucracy; power and order in modern society; and politics in the West.