These 'How To Rap' videos are bringing up some really interesting hip-hop discussion topics. The latest one features Royce Da 5'9" talking about what he feels is more important, subject matter or flow. To double back since I missed the first one, check after the jump for Big Daddy Kane explaining the true meaning of a freestyle – in his opinion, a written rhyme that is free of style (I agree). These clips are taken from the interviews for the book, How to Rap: The Art & Science of the Hip-Hop MC by Paul Edwards. Check out the clips, and weigh in with your opinion/reaction.