Allen Barra's article in the Atlantic, "Roger Maris's Misunderstood Quest to Break the Home Run Record" is a fascinating, must-read for baseball fans and history buffs. Plus it gives some great tips for those of us who would like further reading on this topic.
I took particular note of Phil Pepe's 1961: The Inside Story of the Maris-Mantle Home Run Chase, David James Duncan's novel, The Brothers K, and Barra's Clearing The Bases, The Greatest Baseball Debates of the Century.