Not sure if I'm correct or not , but there was an old Disney cartoon titled The Book of Pooh , couldn't it be a reference to this episode's name?
I think of the Bible "Book of Job", but that is why no reference will be accepted as conclusive without a better reason. Too many possibilities. --Buckimion (talk) 17:33, April 5, 2014 (UTC)
It's probably a reference to The Book Of Mormon (The Actual Book or Trey Parker and Matt Stone's musical) AmongTheTeddy (talk) 23:59, August 5, 2014 (UTC)
Lots of possibilities. There might not even be a reference, just "Book of Joe". QuagmireDog (talk) 00:41, August 6, 2014 (UTC)QuagmireDog