Though flagging behind "Stranger in a Strange Land" in mass appeal, perhaps to due upsetting religious sensibilities, "Job: A Comedy of Justice" has to be my personal favorite work by Heinlein. The protagonist, Alec Graham, is flung from reality to reality taking every available opportunity to make things worse, and doing so. A modern Job, his existence is being tested by God. Through love and suffering he eventually reaches a highly bureaucratic heaven to try and get redress for his grievances. ONLY Heinlein could have made this book with delicacy, humorous while making you question yourself and everything else. In my opinion, this book cannot be read once. You must read it and let it work on your subconscious for a few years. Upon re-reading it, the brilliance of writing and the eloquence of Heinlein's phrasing will astound you. This book can affect your life, even if the only message that comes to you from it is... "Take it Easy"