Written by MARK GRUENWALD, PETER SANDERSON, ELIOT R. BROWN & MORE. Penciled by JOHN BYRNE, DAVE COCKRUM, BOB LAYTON, JOHN ROMITA JR. & MORE. Cover by KEITH POLLARD. How many rooms in the X-Mansion? What makes web-shooters work? Find out as Spider-Man and the X-Men join forces to highlight the third volume of this Guide to the Greats! Featuring full profiles on Rogue, Shadowcat, Storm, the White Queen, Wolverine and more! The Scarlet Witch, the Silver Surfer and so many more in glorious color! The secrets of S.H.I.E.L.D.! The schematics of the Sentinels! The story of Subterranea and the wonders of Wakanda! Plus: details on more than a hundred alien races! Collects OFFICIAL HANDBOOK OF THE MARVEL UNIVERSE - DELUXE EDITION #15-20. 424 PGS./All Ages.