Venom and Carnage are both symbiotes, Venom being attached and relying on his host, Eddie Brock, to survive. While Carnage, the offspring of Venom, is more connected to his host, Cletus Kasady, due to carnage residing in Cletus's bloodstream.[1] Cletus is a more cold blooded, evil villain causing Carnage to be more violent and rampage. Eddie Brock was a journalist and a harmless guy, after having patience with Venom being blood thirsty and somewhat violent, they came to an agreement, to only eat the bad guys and spare the innocent.
The first time Venom appeared was in May of 1988, and the first movie was in October of 2018. Spider-Man originally mistook Venom as a black suit, unaware he would eventually be taken over by the symbiote.[2] Spider-Man ends up rejecting Venom, where they eventually work with each other when needed but also becoming archenemies.
Collected edition
All four issues were collected in the 96-page softcover trade paperbackSpider-Man: Venom vs. Carnage.[3]