The Utmost Sail is a novel by Bernard Sachs, first published in 1955 by Kayor Publishing House in Johannesburg. This work is a fictionalized account inspired by the life of South African writer Herman Charles Bosman, with whom Sachs had a personal acquaintance. The narrative explores the complexities of Bosman’s character and experiences, offering insights into his life through a literary lens.

Bernard Sachs (1905–1985) was a journalist, historian, and author known for his contributions to South African literature and cultural commentary. His works often examined the lives of prominent South African figures, and *The Utmost Sail* stands as a testament to his interest in portraying the essence of his contemporaries through fiction.

The novel remains a notable piece for collectors and enthusiasts of South African literary history.