Jo Mazelis was born in Swansea, Wales. Her work has appeared widely in magazines and anthologies, and has been broadcast on Radio 4. She is the only writer to have been awarded the Rhys Davies Award three times. In addition to her writing, she works as a designer and photographer: the cover picture and design for her story collection Diving Girls is her own. She has a Welsh daughter and an American husband. She has lived and worked in London and Aberystwyth, and now lives on a hill in Swansea with a very small view of the sea.