This formidable work - also published under the title of Principals of Social Reconstruction - discusses war, pacifism, reason, impulse and personal liberty, and greatly contributed to Russell’s fame as a formidable social critic and anti-war activist.

In this collection of essays, Russell surveys the social and political consequences of his beliefs with characteristic clarity and humour. In Praise of Idleness is a tour de force that only Bertrand Russell could perform.

In this remarkable book, regarded by Russell as one of the most important of his career, he argues that power is man's ultimate goal and is, in its many guises, the single most important element in the development of any society.

Portraits from Memory is Russell at his best and will enthrall those new to Russell as well as those already well-acquainted with his work. This Routledge Classics edition includes a new foreword by Nicholas Griffin.

First published in 1919, Introduction to Mathematical Philosophy shows Russell drawing on his formidable knowledge of philosophy and mathematics to write a brilliant introduction to the subject. This Routledge Classics edition includes a new Foreword by Michael Potter.

Exploring the nature and scope of scientific knowledge, the increased power of nature that science affords and the changes in the lives of human beings that result from new forms of science, this is an insightful and accessible work that sees Russell at his very best.

A precursor to Russell’s famous Principa Mathematica, this is one of the most original and comprehensive treatises on the logical foundation of mathematics available today.

Available for the first time in the Routledge Classics series in a single volume, this pithy, provocative and often-personal collection of essays brings together the very best of Russell’s many contributions to the New York American, and proves just as engaging for today’s readers as they were in the 1930s.

A remarkable work, What I Believe remains the best concise introduction to Russell's thought.

By examining the way we acquire knowledge of the world around us, Russell explores what separates scientific knowledge from our ‘seeming’ consciousness, and in doing so, significantly advances the discourse on the meaning and function of philosophy.