Well, the series was conceived as a grand homage to mystery literature in general, from its very beginnings. The list would be endless, but I must mention: Edgar Allan Poe (in many ways my favourite), Émile Gaboriau, Ellery Queen, Rex Stout, Edgar Wallace, Arthur Conan Doyle, Dorothy Sayers. But the book also pays tribute to more modern authors who have rejuvenated the genre, such as Michael Connelly, Elizabeth George, Peter Swanson, Anne Perry, P.D. James, Louise Penny, and many others. I am also very fond of Georges Simenon and Italian authors like Massimo Carlotto, Andrea Camilleri, Maurizio de Giovanni, and Carlo Lucarelli. On the more noir side, I'm mad about Jim Thompson, James Lee Burke, Patrick Manchette, Jean-Claude Izzo, and Patricia Highsmith.