Minute Mysteries, subtitled Detectograms, presents a series of compact detective puzzles in which the reader is invited to spot the clue that gives the criminal away. Each mystery is brief enough to read in a few minutes, making this an ideal book to dip into and test your deductive powers.
A curiosity of the golden-age detective tradition, it treats the reader as an active participant rather than a passive audience. Download the free EPUB and see how many you can solve before turning the page.