"It is most certainly to you that I owe Sherlock Holmes...round the centre of deduction and inference and observation which I have heard you inculcate I have tried to build up a man."
One would like to have met Professor Joseph Bell, who apparently was so like the fictional Sherlock Holmes that Robert Louis Stevenson recognized the portrait from afar. At any rate, the character he inspired has long had his own life, is even a byword, and has inspired memorable performances from actors as different as Basil Rathbone and Robert Downy Jr. Since this book appeared, there have been many Sherlocks, with different styles and different signature traits. But here is the original to discover for the first time, or revisit like an old friend.