Debbie De Louise is an award-winning author and a reference librarian at a public library on Long Island. She is a member of Sisters-in-Crime, International Thriller Writers, Long Island Author's Group, and the Cat Writer’s Association. She has a BA in English and an MLS in Library Science from Long Island University.

Her published novels include Cloudy Rainbow, a paranormal romance , and the Cobble Cove Mystery series featuring the books A Stone's Throw, Between a Rock and a Hard Place, Written in Stone, and Love on the Rocks by Solstice Publishing. Debbie has also written a romantic comedy novella, When Jack Trumps Ace, and articles, and short stories for several anthologies of various genres. Her standalone mysteries include Reason to Die  and her latest release Sea Scope, a psychological mystery published by Next Chapter. She lives on Long Island with her husband Anthony, daughter Holly, and cats Stripey, Harry, and Hermione.