DCs encyclopedia of heroes and villains steps into the 1990s in this massive hardcover continuing the classic Whos Who biography series! Also includes the spin-off series Whos Who in the Legion of Super-Heroes, spotlighting DCs greatest team of the 30th century. Collects Whos Who in the Legion of Super-Heroes #1-7, Whos Who in the DC Universe #1-16, and Whos Who in the DC Universe Update 1993 #1-2.