As the dark king Knull descends on the Marvel Universe, the Official Handbook turns its focus to all things symbiote with this new collection of profiles! This issue covers not only symbiote hosts such as Venom (Eddie Brock), Carnage (Cletus Kasady) and Lee Price, but also characters whom symbiotes have affected: Victoria Montesi! Ghost-Spider (Gwen Stacy)! Dylan Brock! Ann Weying! Plus: a profile of Knull, the King of Black himself! And from the pages of THOR: the All-Black - the first symbiote!