Written by LEN WEIN, ROY THOMAS, STEVE GERBER, DON MCGREGOR, ROGER SLIFER, GERRY CONWAY & TONY ISABELLA Penciled by DAVE COCKRUM, JOHN BUSCEMA, RICH BUCKLER, DON HECK, GIL KANE, FRANK ROBBINS & DON PERLIN Cover by JOHN ROMITA Giants roamed the Earth in those days, and now they're back! Witness the formation of the new X-Men and the old Invaders! The rapid return of the wartime runner called the Whizzer! The debut of the multiplying Marvel Knight Madrox! Spider-Man vs. the Man-Wolf! The Defenders vs. the Squadron Sinister! The tantalizing Tigra and more! Tales almost too tall to tell, together in a titanic tome! Collects GIANT-SIZE FANTASTIC FOUR #4; GIANT-SIZE AVENGERS #1; GIANT-SIZE DEFENDERS #4; GIANT-SIZE SUPER-HEROES #1, GIANT-SIZE INVADERS #1; GIANT-SIZE X-MEN #1 and GIANT-SIZE CREATURES #1.