Russell’s works remain their own best introduction, but there is a large literature on Russell and the various aspects of his philosophy, some of which carries much further the debates he started. A. J. Ayer’s Bertrand Russell (Fontana, 1972) and Russell and Moore; The Analytical Heritage (Harvard University Press, 1971) provide a sympathetic introduction. R. M. Sainsbury’s Russell (Routledge, 1979) gives an absorbing technical discussion of Russell’s central work. Peter Hylton’s Russell, Idealism and the Emergence of Analytic Philosophy (Clarendon Press, 1990) is essential reading for any serious study of Russell’s thought. Nicholas Griffin’s Russell’s Idealist Apprenticeship (Clarendon Press, 1991) is an excellent detailed study of Russell’s early work in philosophy.
There are a number of collections of essays on aspects of Russell’s work. E. D. Klemke (ed.), Essays on Bertrand Russell (University of Illinois Press, 1971), D. F. Pears (ed.), Bertrand Russell (Anchor Books, 1972), G. W. Roberts (ed.), Bertrand Russell Memorial Volume (Allen & Unwin, 1979), P. A. Schilpp (ed.), The Philosophy of Bertrand Russell, 3rd edn. (Tudor Publishing, 1951), are to be found in most academic libraries and between them cover much ground.
Alan Ryan’s Bertrand Russell: A Political Life (Penguin Books, 1988) is excellent on the ‘applied’ side of Russell’s activities.
Other works cited in the main text are: Michael Dummett, Frege: Philosophy of Language, 2nd edn. (Duckworth, 1981); A. J. Ayer, Central Questions of Philosophy (Weidenfeld & Nicolson, 1973); William James, Essays in Radical Empiricism (Longmans, 1912); P. F. Strawson, ‘On Referring’, Mind (1950), reprinted in Strawson, Logico-Linguistic Papers (Methuen, 1971), and Individuals (Methuen, 1959); and F. H. Bradley, Appearance and Reality (Oxford University Press, 1897).