J.-K. Huysmans (1848–1907) now stands firmly recognized as a significant and influential writer, often hailed as a pioneer of modernism. While his novel À rebours (Against Nature) remains infamous for its decadent protagonist retreating into a realm of artifice and dreams, Huysmans’ literary contributions are far-reaching. Ruth Antosh explores Huysmans’ life and work, illustrating how they reflect France’s era of profound social and artistic change. In this context, Huysmans’ lesser-known writings, such as his correspondence, early fiction, art criticism and the esteemed mid-career novel En rade (Stranded), cherished by the Surrealists, demand greater critical attention. This biography compellingly argues that Huysmans’ life was an unwavering quest for spiritual and aesthetic fulfilment, evident through his meaningful friendships and prolific writings.