Using examples from Bishop’s letters and diaries, as well as more recent theoretical accounts, the introduction explores various meanings of the word ‘style’ and their pertinence to Bishop’s work. The introduction highlights the predominance of biographical criticism in works on Bishop (and other twentieth-century writers) and instead argues for the importance of stylistic criticism. This chapter goes on to delineate two broader trends in contemporary literary criticism – historicist on the one hand, formalist on the other – and outlines their shortcomings in understanding the nuances of particular poems and literary works. The chapter then outlines this book’s focus on several aspects of style across Bishop’s entire oeuvre, including cliché, simile, allusion, and correctio. The introduction ends by arguing that aesthetic evaluation and judgement are central to the responsible and rigorous practice of literary criticism.