Thank you for your response. I strongly disagree with the notion that the book only approach is efficacious. Very, very few people learn through this method. If it was effective I think a lot more people would go this route instead of through university. In 500 years or so of books being cheap they never even once came close to disrupting the lecture format.
I'm not sure that books were so cheap in the last 500 years. Many people didn't even know how to read back then. Or did they? Besides, it is questionable how many of those books of 500 years ago were good books for learning.
One most presume that the books were cheap, analphabetism were very low, and most books were truly good for the common people to understand it. I'm not sure this situation was entirely true :)
