This critical study covers the whole range of Dylan Thomas's writing, both poetry and prose, in an accessible appraisal of the work and achievement of a major and dynamic poet. It interrelates the man and his national-cultural background by defining in detail the Welshness of his poetic temperament and critical attitudes, as both man and poet. At the same time, it illustrates Thomas's wide knowledge of and impact on the long and varied tradition of poetry in English. In that connection, it delineates and delimits Thomas's relationship to surrealism, compares and contrasts his work with that of other poets of the 1930s and 1940s, and shows how its power survives his early death in 1953, in the decade of the 'Movement' poets and beyond.