For those annoyed by shoddy garish coloring, the Essential series reproduced your favorite comics in black & white (some pages have greytones added).

The downside of Marvel's Essential series and DC's Showcase Presents series is that they are paperbacks, with all the frailties that come with that, and hard to find in great condition. This particular copy is still very flat, tight, and clean.

Collects Avengers #47-68, Avengers Annual #2. Written by Roy Thomas. Art by John Buscema, with Gene Colan, Barry Smith, Sal Buscema.

From the back cover:

The Avengers have always represented strength through diversity. Among the ranks of Earth's Mightiest Heroes are Captain America, a hero out of time, thawed from an icy sleep since the end of World War II; Tony Stark, aka Iron Man, wealthy and privileged industrialist; the mighty Thor, Norse God of Thunder; and the Black Panther, warrior-born king of the African kingdom of Wakanda. But now, they have a new member of the team, unlike any that has come before... His name is the Vision and he represents the greatest diversity of all... for you see, he's an android!

From the publisher:

Captain America, the Wasp, Hawkeye, Hercules, Iron Man and Thor assemble to face a tidal wave of villains including Magneto, the Grim Reaper, the Collector, the Masters of Evil, the Scarlet Centurian, the Circus of Crime and Ultron! This collection also continues the first appearance of Yellowjacket, the transformation of Hawkeye into Goliath, the first appearance of Black Panther as an Avenger, and the wedding of Janet van Dyne and Hank Pym!

Plus: the first appearance of the Vision!