Crisis on Multiple Earths #2

This volume continues DC's reprint series collecting classic Silver Age team-ups between the Justice League of America and the Justice Society of America, originally published in the 1960s and early 1970s. It gathers stories that further explore the concept of the Multiverse, as heroes from Earth-1 and Earth-2 join forces to confront threats that span their parallel worlds. Key tales include the first meeting of the JLA and JSA with the Freedom Fighters and the introduction of the villainous Crime Syndicate of Earth-3.