The Official Handbook Of The Marvel Universe: A To Z Update #4 is a must-have for Marvel fans looking to delve into the intricate world of the comic universe. Published by Marvel, this issue serves as a comprehensive guide to the characters, stories, and lore of the Marvel Age. With a focus on modern comics, this handbook provides readers with a detailed overview of the latest additions to the Marvel universe, making it a valuable collectible for both longtime fans and newcomers alike.