Spinoza (1951; second edition 1962; third edition 1987) is a book about Baruch Spinoza by the English philosopher Stuart Hampshire. The work includes a foreword by philosopher A. J. Ayer, while a new introduction was added to the 1987 edition. Spinoza has become a classic work about Spinoza and has received praise from philosophers. In 2005, Spinoza, along with Hampshire's other writings on the philosopher, was incorporated into a single volume, published as Spinoza and Spinozism.