What is it like to visit in prison? Why would someone want to do that if they didn't know the prisoner? How does it feel to receive prison visits from a stranger?

These questions are answered in a new book, "Reaching Beyond Prison Walls: Stories of Volunteer Visitors and the Prisoners They See." Edited by Eric Corson, who for 40 years was the director of Prisoner Visitation and Support - a nationwide program that pairs volunteers with prisoners in the U.S. federal and military prisons who rarely receive visits, the book contains stories about visiting in prison from the perspective of visitors and prisoners, in their own words.