Judy Penz Sheluk is the author of the Glass Dolphin Mystery and the Marketville Mystery series. Her short stories appear in several collections, including The Best Laid Plans: 21 Stories of Mystery & Suspense, which she also edited.

In addition to writing mysteries, she spent many years working as a freelance writer and editor; her articles have appeared in dozens of U.S. and Canadian consumer and trade publications.

Judy is a member of Sisters in Crime National, Toronto, and Guppy Chapters, International Thriller Writers, the Short Mystery Fiction Society, South Simcoe Arts Council, and Crime Writers of Canada, where she serves on the Board of Directors.