Ulla Vaarnamo has written prose, poetry, plays, and columns. She has published two novels (2002 and 2005) and two collections of short stories (200 and 2005) through the publishing house Tammi, and a poetry collection through the publishing house
Kirjokansi (2014). Her writings have also been published in anthologies. She was a part of the poetry improvisation group Muuntaja 2000-2011.