* Writing: In addition to writing the Skulduggery Pleasant series, Landy has also written several other books and short stories. He is also a playwright, and his play "The Curse of the Spider King" was performed at the Dublin Fringe Festival in 2012.
* Music: Landy is a musician and plays several instruments, including the guitar, bass, and drums. He has been in several bands, and his music has been featured in some of his books.
* Gaming: Landy is a fan of video games and enjoys playing a variety of games, including role-playing games, first-person shooters, and strategy games.
* Travel: Landy has traveled extensively and has visited over 50 countries. He enjoys learning about different cultures and experiencing new things.