Green Lantern / Sinestro Corps: Secret Files #1

This 2008 DC special dives deep into the mythology of the Green Lantern universe, promising bios on over 200 Lanterns — making it an essential reference for anyone invested in the Corps. The cover by Ivan Reis and Oclair Albert is a sweeping ensemble piece, with a determined Hal Jordan surging forward at center while John Stewart, a blue-skinned female Lantern, a massive rocky creature, and several other Corps members — both emerald-clad allies and yellow-ringed Sinestro Corps members — swirl around him in a haze of green energy. It's a richly packed tableau that captures the sheer scope of both organizations, backed by a story from Sterling Gates with art by Joe Prado.