Jim Summaria and Mark Plotnick join Wendy Snyder, filling in for John Williams, to talk about their newest book, ‘70’s Chicagoland Rock Concerts.’ Jim and Mark talk to Wendy about their first concerts, Jim describes how he became interested in rock-n-roll photography, the Chicago area venues that hosted the top artists of the time, and their most memorable Chicagoland shows from the 1970’s.