Book excerpt: This encyclopedia is the most up-to-date, concise, clear and affordable guide to all aspects of science fiction, from its background to generic themes and devices, from authors (established and new) to films. Science fiction has evolved into one of the most popular, cutting-edge and exciting fiction geners, with a proliferation of modern and classic authors, themes and ideas, movies, TV series and awards. Arranged in an A-Z format, and featuring a comprehensive index and cross-referencing system, The Mammoth Encyclopedia of Science Fiction is also the most accessible and easy to use encyclopedia of its kind currently available.