The Friends of the Oak Park Public Library present folk singer Debra Cowan in a free concert. Debra Cowan performs in the great tradition of folk singers like Joan Baez and Judy Collins. She sings with a clear voice that calls forth the ghosts of long past, but can also offer a more modern urban landscape. In her newest release, "Fond Desire Farewell," she’s taken contemporary and time-honored public domain songs and put them in a modern setting. CDs will be available for sale and signing following the concert.