 The 1984 novel "" is a sharp satire of organized religion.Heinlein himself was agnostic.Several Heinlein works have been published since his death, including the aforementioned "" as well as 1989's "Grumbles from the Grave", a collection of letters between Heinlein and his editors and agent; 1992's "Tramp Royale", a travelogue of a southern hemisphere tour the Heinleins took in the 1950s; "Take Back Your Government", a how-to book about participatory democracy written in 1946; and a tribute volume called "Requiem