It is an excellent set of stories originally published between 1946 and 1955 that still hold up well because they deal with human nature, which hasn't changed over the years. The stories involve jealousy, possessiveness, loneliness, conceit, humility, and savantism. But there's also humor, sardonic wit, told-ya-so, a kid going out to play on another planet, a telepathic Great Dane, and a hurkle kitten. What more could you ask for in an anthology? And ignore Sturgeon's law here -- his statement that "Ninety percent of everything is crud."
If you haven't read anything by the writer who came up with the phrase "Live Long and Prosper," and who came up with the idea of the "Prime Directive" (in a submitted, but unproduced, script), I recommend this collection, or the previous one, Caviar.
Anatomy of Wonder says, "Nine stories with an introduction by Groff Conklin. "Unite and Conquer!" represents Sturgeon's touch with a story of a brilliant scientist who tricks the world into "uniting" against a threat from invading aliens, bringing a new, beneficial world order. Also contains the nuclear warning story, "Thunder and Roses," "The Hurkle Is a Happy Beast," and "Tiny and the Monster."