Though he's fallen somewhat out of favor of favor in recent years, there's no disputing the fact that without Campbell's ASF, there wouldn't be a science fiction field as we have come to know it today. The first decade of his editorship was always called the Golden Age of science fiction, and his development of the form from science-adventure-for-young-boys to a serious speculative literature that incorporated real characters and philosophies and plot, not to mention literary style and expertise, was instrumental. This large volume is a good representation of the the best of the decade. There's little diversity in these stories from the 1940's, probably because there was no such concept in the society of the 1940's, but their worth can't be dismissed no more than one would dismiss any other classic work from any other period of history for the same reasons. Many of the familiar classics are included, such as Robert A. Heinlein's Blowups Happen, Isaac Asimov's Nightfall, Murray Leinster's First Contact, Theodore Sturgeon's Thunder and Roses, and A.E. van Vogt's Vault of the Beast. Not to mention The Witches of Karres by James H. Schmitz. Campbell picked two stories by Eric Frank Russell, whom he called his favorite, and there are two by Murray Leinster, and two by the team of Henry Kuttner and C.L. Moore, though their stories are under two different pseudonyms, Lewis Padgett and Laurence O'Donnell. There are stories by other famous writers closely associated with the magazine, such as Lester del Rey, H.B. Fyfe, H. Beam Piper (no, not the same person), William Tenn, T.L. Sherred, Clifford D. Simak, L. Sprague de Camp, Jack Williamson, and a few others. I don't think it's a perfect collection-- I would've picked more than one by Heinlein, and included something by L. Ron Hubbard and maybe a few others-- but it's the best ever assembled. Golden Age indeed!