[1] Trinca was born in Perth and graduated from the city's University of Western Australia with a BA in English and anthropology.
[3] A former contributor to the Griffith Review[4] and Australasian Business Intelligence,[5] Trinca previously held senior positions at The Sydney Morning Herald.
[6] Her third book, Madeleine, is a biography of Madeleine St John,[7] who was the first Australian female writer to be shortlisted for the Man Booker Prize in 1997.
[8] Trinca's book was a joint winner of the 2014 Prime Minister's Literary Awards.
[9] Trinca was shortlisted for the 2024 Hazel Rowley Literary Fellowship for her proposed biography of Australian writer, Elizabeth Harrower.