Book excerpt: The Sherlock Holmes Book, the latest in DK's award-winning Big Ideas Simply Explained series, tackles the most "elementary" of subjects--the world of Sherlock Holmes, as told by Sir Arthur Conan Doyle. The Sherlock Holmes Book is packed with witty illustrations, clear graphics, and memorable quotes that make it the perfect Sherlock Holmes guide, covering every case of the world's greatest detective, from A Study in Scarlet to The Adventure of Shoscombe Old Place, placing the sorties in a wider context. Stories include at-a-glance flowcharts that show how Holmes reaches his conclusions through deductive reasoning, and character guides provide handy reference for readers and an invaluable resource for fans of the Sherlock Holmes films and TV series. The Sherlock Holmes Book holds a magnifying glass to the world of Sir Arthur Conan Doyle's legendary detective.