She began publishing her autobio perzine comic, Booty, in 1995, when she began graduate school. Issues are published about once per year in a 6 1/2 x 8 1/4 inches format. Booty is currently at issue #21 and was included in the 2001 Zine Yearbook.
Thalheimer has also contributed extensively to a number of zines and comics anthologies, including Not My Small Diary, I Keee You!!, CROQ, and the three Trees and Hills anthologies. She is currently at work on a longer book, titled What You Don't Get... due out later this year.