Sherlock Holmes is a fictional detective created by British author Sir Arthur Conan Doyle. He is known for his brilliant deductive reasoning, keen observation skills, and his ability to solve even the most complex mysteries. Holmes first appeared in the novel 'A Study in Scarlet' and went on to become one of the most iconic characters in detective fiction. With his iconic deerstalker hat and pipe, Holmes has been portrayed in numerous adaptations, both on screen and in literature. His adventures, chronicled by his loyal friend Dr. John Watson, continue to captivate readers around the world.