I'd like to recommend the book "Flow" as it deals with this issue but I can't do it in good conscience. If you are willing to pick out a few grains from a lot o

I'd like to recommend the book "Flow" as it deals with this issue but I can't do it in good conscience. If you are willing to pick out a few grains from a lot of chaff you may be able to mine out a decent treatment of the subject. Be prepared to do a lot of sifting though.