In discussing two books on the new apocalypticism, Jason Byassee confesses that he failed as a pastor to know what his people were reading and thinking about the topic. I know what he means. I don’t read this stuff either. But a lot of people are reading it. Sales estimates for the Left Behind series range from 40 million to 60 million. Whatever the exact figure, authors Tim LaHaye and Jerry Jenkins are surpassing John Grisham in the category of popular novelists. The publisher, Tyndale House, knows a good thing when it sees it: it will spend $2 million marketing the 12th and final volume, Glorious Appearing. Wal-Mart is giving away free copies of the first chapter as a come-on.