Is it possible to learn to think as clearly and rationally as Sherlock Holmes, or is his impeccable logic and crystal clarity of mind just a fiction of the writer? Yes, Maria Konnikova, a well-known American psychologist and journalist, is convinced. Viewing episodes from Conan Doyle's books in the light of modern neuroscience and psychology, she reveals, step by step, in a relaxed and engaging way, mental strategies that lead to clear thinking and a deep understanding of phenomena and facts. The book describes how, following the example of the great detective, if desired and a certain training, we can sharpen our perception, develop logic and creativity.