From the publisher:
The JSA Sourcebook covers three generations of super-hero teams -- the original Justice Society of America, Infinity Inc., and the new JSA -- along with their allies, enemies, and equipment. Inside, you will find:
A history of each team, spanning over six decades. Descriptions of members of several super-hero teams, including: Justice Society of America; All-Star Squadron; Freedom Fighters; Seven Soldiers of Victory; Young All-Stars; Infinity Inc.; The new JSA. A look at some of their greatest villains. A tour of each team's base and an overview of their equipment. A Narrator's section on the 1940s. A new adventure set during World War II that has the heroes searching for items from the time of Camelot. A great resource for the JSA and Golden Age comics!