What constellation is Sherlock Holmes and what is his personality?

Sherlock Holmes, a fictional detective character, is a brilliant detective image created by British detective novelist Arthur Conan Doyle at the end of 19. Holmes himself calls himself a "consulting detective", which means that other private or official detectives often turn to him for help when they are in trouble. Most of the stories focus on some difficult cases that need Holmes to go out to investigate. Holmes is good at solving problems through observation and deduction. When Conan Doyle was a trainee in Edinburgh Royal Hospital, he was inspired by an observant teacher and created the character Sherlock Holmes.