possibly. i have had some experience teaching it, and it's very weird seeing who ends up getting somewhere... like there are people who adapt quickly to it, and i suppose that is good because they get the positive feedback and feel like they are gaining something, then there are people who find it very hard, and it is amazing to see them going from really not there at all to just even knowing that they find it hard to be quiet. a much bigger leap.

also, the quality of teachers really varies. and i just don't think it's one of those things that is good to do entirely from a book - i did try! but live teaching, ideally in a group is best.