The author of the "Sherlock Holmes" series is Sir Arthur Conan Doyle. A prolific writer, Doyle created the iconic detective character Sherlock Holmes, appearing in four novels and numerous short stories. The first story, "A Study in Scarlet," was published in 1887, introducing Holmes and his companion Dr. John Watson. Doyle's portrayal of Holmes as a brilliant detective with exceptional observational skills and logical reasoning has captivated readers for generations. The character has inspired countless adaptations in literature, film, and television, cementing Sherlock Holmes as one of the most enduring figures in mystery fiction.