Her debut collection of short stories, Fresh Apples, won the inaugural Dylan Thomas Prize in 2006.
Trezise's second book, Fresh Apples, was a wry, gritty collection of short fiction describing life in the mining valleys of south Wales.
[2] Trezise grew up listening to rock music in the late 1980s, and held a long ambition to write a rockumentary.
[3] In 2007, Parthian published Dial M for Merthyr, Trezise's account of her time spent on tour with Welsh rock band Midasuno.
Trezise also contributed a short story, "On the Strip", to The Empty Page: Fiction Inspired by Sonic Youth, published by Serpent's Tail in 2008.