From the back cover:

Welcome to New York. Here, burning figures roam the street, men in brightly colored costumes scale the glass and concrete walls, and creatures from space threaten to devour our world. This is the Marvel Universe, where the ordinary and fantastic interact daily. This is the world of Marvels. Witness the birth of the fantastic universe from the inside. See the world's greatest heroes in a different light, with a new awe and a touch of fear. For the first time experience the Marvel Universe from a whole new perspective--yours.