First edition. 8vo. x, 258, pp. Original blue cloth, spine lettered in gilt, dust jacket (thin strip of partial offsetting to endpapers as usual, contents otherwise clean and unmarked; minor creasing to edges of jacket with closed tear to rear fold of spine panel, still an excellent copy). London, MacMillan & Co, 1956.
Ayer’s analysis of scepticism and the philosophical problems of perception, memory, and knowledge of other’s minds, ‘in which, abandoning reductionism, he justified our everyday beliefs by their power to explain our sense-experience’ (ODNB).