Venom Reading Order
A few decades before becoming the star of his own movie franchise, Venom was just a new, improved, and dark costume used by Spider-Man. Introduced in The Amazing Spider-Man #252 (May 1984), the black costume really became Venom in The Amazing Spider-Man #300 (May 1988) from David Michelinie and Todd McFarlane, the sentient alien symbiote with an amorphous, liquid-like form, that bonds with a host.
Venom became one of Spider-Man’s most prominent villains when he bonded with Eddie Brock, a disgraced journalist who, after having wrongly accused a man to be the serial killer known as the Sin-Eater (the truth was exposed by Spider-Man!), became suicidal. That’s when he came into contact with the symbiote. They bond together, and Venom is born.
First a villain, Venom evolved to become an antihero (before reverting to his old ways… for a time). Eddie Brock is not the only host for the symbiote. He bonded with Mac Gargan (Scorpion), Flash Thompson, and more. He spawned several “children” like Carnage, Scream, Lasher, Phage, and more. Recently, the mythology surrounding the Alien symbiotes became massive to the point of menacing the entirety of the Marvel Universe.