In 2006, her work was included in a retrospective fashion show at the Museum of Arts and Design in New York City.
Her Italian grandmother taught her to knit, and she completed her first sweater in seventh grade with the guidance of her home economics teacher.
Epstein's mastery of knitting techniques began, however, when she was fourteen, with lessons from a local Spanish woman.
Epstein has long been respected as a knitter and designer, and has been quoted as saying, "I will support anything that promotes knitting.
Epstein has also authored popular books on making knitted or crocheted clothes for Barbie dolls, as well as sundry projects for the home, such as afghan blankets and Christmas stockings.