Lemony Snicket is a pseudonym used by author Daniel Handler in his book series A Series of Unfortunate Events, as well as a character in that series. An autobiography was published, entitled Lemony Snicket: The Unauthorized Autobiography with an introduction from Handler. Handler has also written some other books and short fiction under the Lemony Snicket name.
The name Lemony Snicket apparently came from research for Handler's first book, The Basic Eight. Handler wanted to receive material from organizations he found "offensive or funny", but did not want to use his real name, and invented "Lemony Snicket" as a pseudonym. He would also use the name to write prank letters to newspapers, pretending to be outraged at a trivial news item. When writing A Series of Unfortunate Events, he and his editor thought that the books should be published under the narrator's name, rather than his.