Sir Arthur Conan Doyle, born on May 22, 1859, in Edinburgh, Scotland, is renowned for his indelible contribution to the mystery genre, primarily through the creation of the iconic detective, Sherlock Holmes. Educated at Stonyhurst and later at Edinburgh University, Doyle initially pursued a medical career, which palpably influenced his literary works, offering a rational and empirical approach to his characters' problem-solving techniques. His fascination with spiritualism and the afterlife, which intensified in the later stages of his life, is reflected in works such as 'The Vital Message' (1919), wherein he expounded on his spiritualist beliefs and claimed that communication with spirits was possible, a theme that diverged substantially from his earlier detective fiction. Best remembered for 'A Study in Scarlet' (1887), 'The Sign of Four' (1890), 'The Hound of the Baskervilles' (1902), and 'The Adventures of Sherlock Holmes' (1892), Doyle's narrative style combined tight plotting, deft characterisation, and a meticulous eye for detail. These elements not only entertained but also highlighted his literary versatility beyond Holmes, delving into historical novels, science fiction, and non-fiction. Knighted in 1902, not for his contributions to literature but for his work during the Boer War, Doyle's prolific career spanned various literary forms and subjects, cementing his reputation as a seminal figure in the canon of English literature. He passed away on July 7, 1930, in Crowborough, Sussex, England, but his works continue to be celebrated worldwide.