Baruch Spinoza is one of the most important and original thinkers of the modern period. His work inspired religious free-thinkers and political radicals, French Enlightenment philosophes, German Idealists, Russian Marxists, writers, and scientists. The Lexicon is a comprehensive compendium of entries on Spinoza's own concepts and associated historical figures. It cuts through the daunting profusion of Spinoza scholarship by supplying compact entries that contextualize Spinoza's thought, elucidate crucial concepts, and point the way to the relevant scholarly debates and studies. With entries by established and emerging scholars from North America, Australasia, and Europe, this is not only the most comprehensive and up-to-date picture of Spinoza scholarship, but also the most international and most diverse. It is a vital resource for novices and experts alike seeking to expand their knowledge of Spinoza.