Sir Arthur Ignatius Conan Doyle (1859–1930) was a British writer and physician, renowned for creating the iconic detective Sherlock Holmes. A literary figure of the Victorian and Edwardian eras, his contributions to detective fiction have left an indelible mark on the genre. Born in Edinburgh, Scotland, Conan Doyle studied medicine at the University of Edinburgh, where he began writing short stories. His first significant success was 'A Study in Scarlet,' which introduced Holmes and Dr. John Watson, characters that would become synonymous with the art of deduction and crime-solving. Throughout his career, Conan Doyle wrote four novels and 56 short stories featuring Sherlock Holmes, including the celebrated 'Sherlock Holmes vs. Professor Moriarty - Complete Series (Illustrated),' depicting the intellectual rivalry between Holmes and his nemesis, Moriarty. Conan Doyle's literary style combines intricate plotting, meticulous detail, and a keen psychological depth, earning him a place among the pantheon of great mystery writers. His work not only entertained but also reflected the changing social landscape of his time, ultimately shaping the future of detective fiction. Despite the enduring fame of Sherlock Holmes, Conan Doyle's creative oeuvre included historical novels, plays, romances, poetry, and non-fiction, showcasing a versatility that extended well beyond the confines of Baker Street.