Green Lantern Reading Order
Created in 1940 by Martin Nodell and Bill Finger in DC Comics’ All-American Comics #16 (July 1940), the first superhero named Green Lantern was Alan Scott–one of the founding members of the Justice Society of America.
Alan Scott was the first, but certainly not the last. He was a Golden Age hero (read all about Alan Scott here) and, with the Silver Age, a new Green Lantern appeared: Hal Jordan. This test pilot was given a power ring and a battery (the famous lantern) by a dying alien named Abin Sur whose spaceship crashed on Earth. The ring wants only go to someone “utterly honest and born without fear,” and there is more than one human being fitting that description as new Green Lanterns from Earth appeared in the DC Comics Universe through the decades: John Stewart, Guy Gardner, Kyle Rayner, Simon Baz, Jessica Cruz, and more.
Once chosen by the ring, Hal and the others automatically joined the Green Lantern Corps, an intergalactic law enforcement organization founded by the Guardians, a race of immortals residing on the planet Oa. The Green Lanterns must protect the 3600 “sectors” of the universe–Earth is in Sector 2814.
The Lanterns have only one weapon, but it’s the most powerful one in the DC universe: the power ring. Those who wear a ring gain incredible abilities and control them with their own willpower. The ring protects the Lanterns and, with it, they can form constructs of Oan energy: thoughts become physical constructs. There are downsides, like the need to recharge the rings or the effects of the color yellow (for a time thought).