Preston is the author of a biography of Australian artist Howard Arkley, Not Just a Suburban Boy (Duffy & Snellgrove, 2002),[1][2] and the novel The Inheritance of Ivorie Hammer (University of Queensland Press, 2012).
[6] She released a spoken-word CD, Hirsute, in 1997 (ABC Audio) and performed around Melbourne.
She is a featured vocalist in the occasional performing group Pop Crimes: The Songs of Rowland S Howard.
[11] In May 2021, Wakefield Press announced that they will publish Edwina's new novel, "provisionally titled Veda Grey" in May 2022.
[12] The book was subsequently published as Bad Art Mother and shortlisted for the 2023 Christina Stead Prize for Fiction at the New South Wales Premier's Literary Awards[13] and shortlisted for the 2023 Stella Prize.