Why is it hard for someone who starts studying at Revelation without prior Bible study?
Studying Revelation without prior Bible study is difficult because it is like a child thrown into calculus without basic arithmetic. The necessary foundation is missing. Starting in Genesis and moving through Scripture allows the pieces to fall into place and be understood.
Les explains that someone just coming in at Revelation is about like a kid thrown into calculus without ever having had third and fourth grade arithmetic. That is why it is hard: the earlier biblical foundation has not been laid. Les loves to have people start with him from Genesis and come right on up through, and then all these things just fall into place. The context also notes that past programs from Genesis 1 onward are available for those who need that groundwork.