Arngrim has authored Confessions of a Prairie Bitch, based on her solo show of the same name. The actress is perhaps best known for her portrayal of Nellie Oleson on television's Little House on the Prairie. Her film credits include For the Love of May,The Last Place on Earth, and Make The Yuletide Gay.
Additional friends and colleagues that showed for Arngrim's LA launch were Gloria Allread, E.G. Daily, Romi Dames, Kate Linder, Rose Marie, Cathy Silvers and her Little House co-star, Rachel Greenbush (Baby Carrie). Her guests also joined her at TART on Fairfax Avenue to celebrate.