All The Gifts Of Life: 40 Years Of Rush's '2112'
http://www.npr.org/sections/therecord/2016/04/30/476268876/all-the-gifts-of-life-40-years-of-rushs-2112
Don't pay for them, just download them or listen to them on Youtube to get started. Jimmy himself has stated that he doesn't mind fans listening or trading bootlegs, as long as people aren't profiting from them.