Leslie S. Klinger is an American attorney and writer born in Chicago in 1946. He has established himself as a noted literary editor and annotator, specializing in classic genre fiction and popular works across multiple media. Klinger is best known for his annotated editions of foundational works in literature and comics. His editorial work includes the Sherlock Holmes stories, as well as classic novels such as Dracula, Frankenstein, and Strange Case of Dr. Jekyll and Mr. Hyde. He has also annotated contemporary works, including Neil Gaiman's The Sandman comics and American Gods, and Alan Moore's and Dave Gibbons's graphic novel Watchmen. Additionally, he has worked on annotated collections of H.P. Lovecraft's stories. Through his annotations and editorial work, Klinger has contributed significantly to making complex and layered texts more accessible to readers by providing contextual information and scholarly insight.