Annie Baker is an American playwright and teacher who won the 2014 Pulitzer Prize for her play The Flick. Among her works are the Shirley, Vermont plays, which take place in the fictional town of Shirley: Circle Mirror Transformation, Nocturama, Body Awareness, and The Aliens. She was named a MacArthur Fellow in 2017.

Circle Mirror Transformation is a play by Annie Baker, centered on drama classes at a community center in Vermont. The play opened Off-Broadway in 2009 and received the Obie Award for Best New American Play.