Notes:
This hardcover also comes with an additional 72 page hardcover book with background information on the series, the rough scripts for all four books, an additional script for issue #3 that was never seen, repros of George Perez's original 20 pages from the first aborted JLA / Avengers crossover, and 13 pages of annotations from the four books. Both books come in a slipcase that reprints the cover of JLA / Avengers #3.