A substantial collection of multidimensional hopes and horrors which offers not only 45 stories, long and short, but some of the first names in this field. L. Sprague de Camp, Fletcher Pratt, Anthony Boucher, Isaac Asimov, Ray Bradbury, Murray Leinster, A. E. van Vogt, Lewis Padgett, Fredric Brown, Jack London and H. P. Lovecraft are among those who vary the vistas of brave- and frightening- new worlds.