This interesting and unusual collection of essays explores the post-holocaust theme as it has been treated in science fiction and fantasy literature. Seen in a positive mode, this theme offers a powerful metaphor for exploring man's relationship to his social structure. The post-holocaust motif, the editor contends, literally permits the exploration of many sub-topics, such as rebirth, social patterns, evolution, devolution, entropy, history, ecology, ethics, medicine, personal values, and so on.