These phonebook-sized, B&W, value-priced collections each contain about 25 issues worth of consecutive Moon Knight continuity.
Volume 1 begins with Moon Knight's first appearance in "Werewolf by Night", follows with his never-before-reprinted solo adventure backup features from Hulk magazines, and finally picks up with the first few issues of his first ongoing series.
Volumes 2-3 finish up collecting Moon Knight volume 1, as well as the Moon Knight: Fist of Khonshu miniseries.
These volumes contain much early art from superstar artist Bill Sienkiewicz, which actually looks VERY striking in black and white.
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/essential-moon-knight/4050-26175/).