Sherlock Holmes is undoubtedly one of fiction's most popular characters, having been portrayed by over 200 actors on the screen over the years and having served as the inspiration for other characters such as Batman and Adrian Monk. His stories contain lots of mystery and adventure, but he's also a character who can make logical deductions from the most scant evidence, and we find that inherently fascinating. We find characters who are hyper-intelligent to be really interesting. And what's better about Sherlock Holmes, he's not superhuman, he is human. Which leads me to the point of this book, because if you're anything like me, you've probably gone beyond simple fascination with the character at one point or another and thought to yourself, how can I think like Sherlock Holmes? You know, without all the sociopathic tendencies and the substance abuses, just the good parts. Well that is what I want to explore in this book, and by the end of it you're going to understand three of the core mental strategies that Holmes brought to his deep observation, skepticism, and probabilistic thinking.