Much as some Brexiteers like to pretend it isn’t, England is not only in Europe, but has been, in various centuries and in various ways, at the very heart of it. The former Deputy Prime Minister of the UK, Nick Clegg, discusses his favourite European novels and the founding text of his own political ideology, liberalism.

Paul Krugman, Nobel prize-winning economist, Op-Ed columnist for the New York Times, and Emeritus Professor of Economics and International Affairs at Princeton, discusses the books that most influenced his formation as a liberal economist.

As American congressman Keith Ellison—the first Muslim elected to Congress—enters the race to chair the Democratic National Committee, reread this interview on the cause he stands for: progressivism — and the best books to read to fully understand it.

Historian Eric Foner chooses five books illustrating how concepts of American liberalism have changed over the past 50 years, and about the tension that lies at the heart of liberalism today.

Modern society has interpreted John Stuart Mill’s concept of tolerance to mean that we should avoid giving offence. The director of the Institute of Ideas tells us about books that show how far we’ve departed from what was meant

In the last of our series of interviews on American progressivism, the mayor of Los Angeles chooses five novels and biographies that provide lessons from the past and show what a democratic society should aspire to be

John Kerry, the 68th United States Secretary of State, picks five books that every progressive should read, and discusses the divide in America between the haves and have-nots

The prominent left wing blogger tells us what books have shaped his worldview. He explains why America needs to wake up to the forces preventing change, and better understand the root causes of its political deadlock

Cecile Richards, American pro-choice activist and former president of the Planned Parenthood Federation of America, discusses the stories of struggle and resilience that have inspired her and can give encouragement to others seeking change

Our weekly series on American progressivism continues with the journalist and author discussing the genesis of liberalism – and how the Civil War remade politics

In the latest instalment of our series on American progressivism, the environmental advocate and human rights activist tells us why the age of Obama will really only begin after the president has left office

Toleration is an ideal of conduct which involves putting up with something you find objectionable, says Professor Timothy Stanton. He chooses the best five books on toleration, from John Locke to more recent works.