"So, funny story "I used to avoid the book of Revelation like the plagues it describes. (I overstate the case, but let's just say, it wasn't my favourite book of the Bible.)... "In that case, why have I written twelve-weeks' worth of daily studies (five per week - that's sixty lessons ) all on the book of Revelation? Blame it on Zechariah ..." Each of the twelve weeks of lessons contains five, daily, personal lessons and one, weekly, group-study application with summary and review questions. Daily lessons require a time investment of twenty to thirty minutes.