Spinoza's Ethics, published in 1677, is considered his greatest work and one of history's most influential philosophical treatises. This volume brings established scholars together with new voices to engage with the complex system of philosophy proposed by Spinoza in his masterpiece. Topics including identity, thought, free will, metaphysics, and reason are all addressed, as individual chapters investigate the key themes of the Ethics and combine to offer readers a fresh and thought-provoking view of the work as a whole. Written in a clear and accessible style, the volume sets out cutting-edge research that reflects, challenges, and promotes the most recent scholarly advances in the field of Spinoza studies, tackling old issues and bringing to light new subjects for debate.