As far as I know, Shao Dechun in Hangzhou - "Six Constant Method" is very good. I've trained hundreds of catering hotels with more than three stars and social catering with a turnover of more than 5 million, and I've built more than 200 catering model stores with their six methods, and almost all of them have a turnover of more than 200%. And the company's culture is very good, I like their staff, all are enthusiastic and cheerful, if you need to Baidu six method will know! Really, I wish you something!