Jo Mazelis is the author of short stories, non-fiction and poetry. Her collection of stories, Diving Girls (Parthian, 2002), was short-listed for the Commonwealth 'Best First Book' and Wales Book of the Year. Her second book, Circle Games (Parthian, 2005), was long-listed for Wales Book of the Year. Her stories and poetry have been broadcast on BBC Radio 4 and published in various anthologies and magazines, and translated into Danish. Her novel Significance (Seren, 2014) was the 2015 Jerwood Fiction Uncovered Prize-winner. Her third collection of stories Ritual, 1969 (Seren, 2016) was long-listed for the Edge Hill Short Story Prize 2017.
Born and educated in Swansea Jo returned to her home town in 1991 after working in London for many years. During the 1980s she worked as a graphic designer, photographer and illustrator for the magazines City Limits, Women's Review, Spare Rib, Undercurrents, Everywoman and New Dance.