Harriet Richards was born in Toronto, Ontario, as the fifth of seven children to a Welsh father and an American mother. Her family relocated to the prairies during her childhood. Initially pursuing a career as a visual artist, her creative focus shifted when an obstinate painting, inspired by a recurring dream, evolved into her first short story.

Richards is the author of three acclaimed works of fiction. The Lavender Child (1998) was a finalist for the Fiction Award and won the First Book Award at the Saskatchewan Book Awards. Waiting for the Piano Tuner to Die (2003) was a finalist for Book of the Year, and The Pious Robber (2013) was also a finalist for Book of the Year and won the Fiction Award. Her short fiction has appeared in literary journals in Canada and Wales, and her paintings have been featured on book covers in both countries.

An experienced mentor, Richards has guided emerging writers through the Saskatchewan Writers' Guild and edited numerous works of fiction and literary essays for authors across Canada. She resides in Saskatoon, Saskatchewan.