It is a fascinating and enduringly important collection, superbly well-edited, each paper being prefaced with an excellent intoduction providing background information, summaries of the arguments and, where necessary, criticisms of the views expressed.The editors are to be wholeheartedly congratulated on bringing to the public work which deserves careful study and which ought to do something to revitalise the philosophy of mathematics by presenting a point of view that, unusually, combines intellectual rigour with a willingness to make bold and metaphysical claims. Times Higher Education Supplement, 15 March 1996