Immortality, Inc. is a 1959 science fiction novel by American writer Robert Sheckley, originally published in a shorter form in 1958 as Immortality Delivered. It was Sheckley's first novel and remains one of his most popular and critically acclaimed. The serialised form published under the title Time Killer in the magazine Galaxy Science Fiction was nominated for the Hugo Award for Best Novel the same year it was released (1959). The novel has been re-released in more than 50 editions since its initial publication, including a 2014 e-book. Source: Wikipedia (en)