UNFAMILIAR TERRITORY

SF veteran Silverberg provides a collection of thirteen smoothly handled entertainments. There are several twists on the time travel theme -- an investor in touch with his selves of yesterday and tomorrow, vacation jaunts to the end of the world, a suburban block that mysteriously receives next week's newspaper, an embattled husband and wife attempting varieties of temporal homicide. There are also the tribulations of an adolescent poltergeist, a synthesis of group sex and technology, a new version of the draft, and more.