Selwyn Image was active in many fields as poet, painter, writer, designer and educationalist; both independently, and in association with a large number of those varied organizations which flourished at the turn of the century. As an Oxford undergraduate he was encouraged by Ruskin, the newly appointed Slade Professor, and after an unhappy, interlude as a cleric, formed the Century Guild with Mackmurdo in 1882/3. Guild theory was inspired by Ruskin and by Morris: . but its productions. are unique, and of particular significance in the development of English art nouveau. Image's contribution (and also his independent commissions for glass, embroidery, book decoration and posters), are fully as remarkable in this context as those of his colleagues, although considerably less well known. This thesis seeks to establish an exact chronology for his productions; to publish an extensive range of previously uncollected designs and associated material; and to analyse their relevance in the light of Image's participation in the art movements of his time