Isaiah Berlin was, until his death in 1997, a Fellow of All Souls College, Oxford. He was renowned as an essayist and as the author of many books, among them "Karl Marx, Four Essays on Liberty, Russian Thinkers, The Sense of Reality, The Proper Study of Mankind," and from Princeton, "Concepts and Categories, Personal Impressions, The Crooked Timber of Humanity, The Roots of Romanticism, The Power of Ideas," and "Three Critics of the Enlightenment". Henry Hardy, a Fellow of Wolfson College, Oxford, is one of Isaiah Berlin's literary trustees. He has edited several other volumes by Berlin, and is currently preparing Berlin's letters and remaining unpublished writings for publication.

This remarkable collection contains Isaiah Berlin's appreciations of seventeen people of unusual distinction in the intellectual or political world, sometimes both. The names of many of them are familiar: Winston Churchill, Franklin D. Roosevelt, Chaim Weizmann, Albert Einstein, and others. With the exception of Roosevelt, he met them all and knew many of them well. For this expanded edition, four new portraits have been added, including those of Virginia Woolf and Edmund Wilson. This volume also contains a vivid and moving account of Berlin's meetings in Russia with Boris Pasternak and Anna Akhmatova in 1945 and 1956. Perhaps the most fascinating of these 'personal impressions' is found in the epilogue, where Berlin describes the three strands in his own personality: Russian, English, and Jewish.