The art is taken from various books over the years. Inside cover.
Lex Luthor: Adventure Comics (DC, 1938 series) #271 (by Plastino), Action Comics (DC, 1938 series) #23 (by Shuster & Cassidy), #47 (by Sikela), and The Superman Family (DC, 1974 series) #172 (by Schaffenberger).
Star Sapphire: All-Flash (DC, 1941 series) #32 (by Elias & Worthman) and Green Lantern (DC, 1960 series) #16 (by Kane & Giella).
Joker: Batman (DC, 1940 comics) #1 (by Kane and Robinson), and The Joker (DC, 1974 series) #6 (by Novick & Blaisdell with adaptations) with the cover of #1 (by Giordano).
The art is taken from various books over the years.
Research by Kenneth Gale. Includes 1 panel of various Green Lantern villains by Gil Kane.
Letters from Dave Willcox, Bob Cowden, Bob Rodi, Antone Perry, and Don Bennett.
This is an alternate story originally slated for Secret Society of Super-Villains #1.
Illustrations from House of Secrets (DC, 1956 series) #63 (by Toth).
Based on children's nursery rhyme titled "Solomon Grundy". Readaptation from All-American Comics (DC, 1939 series) #61 Green Lantern story.