October's book will be Robert A. Heinlein's classic Stranger in a Strange Land. There exist two versions of the book, an edited version originally published which runs around 160,000 words. Later, the version Heinlein originally wrote, at about 220,000 words, was published. It is this latter, longer version that we are reading. Typically it is easily identified by a short preface explaining the difference in versions. If you are unable to find the full version, you are welcome to read the shorter version, but you may end up confused in the discussion if events that were edited away are discussed. As usual, I have an epub of the (full version) book to share if anyone needs it.
Also, remember to stop by http://mikefenwick.com/vegan-book-club every so often to suggest new books for discussion and vote on which ones you want to read.