I would have given this anthology 5 stars except for its inclusion of a couple of stories I couldn't resonate with. Most of the contents here are classics in the field, stories that every dedicated sf reader ought to know: "Killdozer!" by Ted Sturgeon, which describes what happens when an energy being from the very distant past is released from its cell and takes over an enormous bulldozer on an island where a construction crew is building an airfield; "The Voices of Time" by J.G. Ballard, which concerns a neurosurgeon who has been experimenting on his patients, and on lab animals, apparently in the hope of leapfrogging evolution (I say "apparently," because there's not much in the way of plot here); "Call Me Joe," by Poul Anderson, in which a crippled man in one of Jupiter's moons is living on the surface of the giant planet as an android being via telepresence; "We Would See a Sign," by Mark Rose, a very short post-Apocalyptic tale in which one of the men responsible for an atomic war displays a sign blaming himself for his actions; "Dreams are Sacred," by Peter Phillips, in which a man is sent via machine into the mind of another man, a psychiatric patient who is refusing to return to the real world; Murray Leinster's "Exploration Team," a more or less standard "planetary" adventure on a planet loaded with nasty lifeforms; Alfred Bester's shattering and narratively complex "Fondly Fahrenheit," about a homicidal android and which still packs a hell of a punch; and Arthur Clarke's "The Sentinel," about a momentous discovery on the Moon, and was the basis for "2001: A Space Odyssey." All in all, if you haven't read the Sturgeon, Anderson, Ballard, Bester and Clarke stories, you can find them here along with some inconsequential stuff.