Calm down Mate. Your question was answered, but apparently you don't want to see it.
Now hear this: When a folksinger stands up in front of an audience and he/she has a book in front of them, it indicates that they haven't done their home work, and they appear to be too lazy to do the work. Whether or not that is always true is questionable, but it is the APPEARENCE that counts.You are allowing something to come between you and your audience, and many listeners resent the lack of intimacy which is so important in folk music.

Now, that being said, personally I don't have strong feelings one way or the other, but many do, and that is what "Book people" must face up to.

Does that answer you question?