Publisher: DC Comics (1984-1988)
Includes: Who's Who: The Definitive Directory of the DC Universe, Who's Who Update '87, Who's Who Update '88, Who's Who in the Legion of Super-Heroes, and the Who's Who Annual entries - Action Comics Annual #2, Batman Annual #13, Blackhawk Annual #1, Detective Comics Annual #2, Dr. Fate Annual #1, Flash Annual #3, Green Arrow Annual #2, Justice League International Annual #3, New Titans Annual #5, Question Annual #2, Secret Origins Annual #3, Swamp Thing Annual #5, and Wonder Woman Annual #2
Dork Note: I know this book was suppose to come out as a Showcase. Then it got canceled over royalty issues, but can't you work it all out? Marvel did it! Why can't you? Please! Please! PLLLLEEEEEEAAAASSSSEEE!
Update: I finally gave up that DC would release these, bought a cheap set on Ebay and had them bound - so I now have a hardcover three volme set!
Fun Fact Clipped from Wikipedia: In the Batman: The Brave and the Bold episode Emperor Joker, during a battle with the Ten-Eyed Man and Batman, Bat-Mite, who breaks the fourth wall, was seen reading about the Ten-Eyed Man in an issue of Who's Who in the DC Universe.