A Possible Trust is a selection of Ronna Bloom's poetry by poet and editor Phil Hall. The book includes an introduction by Hall, and an afterword by Bloom that traces the relevance of photography, psychotherapy, and meditation in her work.

Ronna Bloom is the author of six books of poetry. She is a registered psychotherapist (CRPO inactive). Her work has been broadcast on the CBC, recorded by the Canadian National Institute for the Blind, translated into Bangla and Chinese, and shortlisted for several Canadian literary awards. She has performed with Juno award-winning musician Jayme Stone. In a collaboration with PLANT Architects, her poem "The City" was painted 30 meters long on King Street in Toronto for the summer of 2018.