Special and General Relativityby Albert Einstein contains his core paper, 'Relativity, The Special & The General Theory. A Popular Exposition', which established his reputation as one of the greatest thinkers of our and perhaps any age. Also included are the four lectures he gave to explain his findings in more detail: 'The Meaning of Relativity'. 

FLAME TREE's Great Works That Shape Our Worldis a new series of definitive books drawing on ancient, medieval and modern writing. Created to entertain, inform and enrich, the new series brings infinite variety to refresh the mind, presented in beautiful editions for the modern market. Each book features a new, accessible introduction, specially written for these editions, placing the book in context both as part of the new series, and highlighting its special contribution to the advancement of human understanding; they examine the significance of each work, their impact at time of publication, and their influence today.