I just had a two-day class last weekend, and I didn't feel anything. The content is mainly aimed at large group listed companies, but only a few people in our small place have such strong ability, but it is useless to ordinary enterprises. Just a little more knowledge. Anyway, the boss pays, hehe ~ ~
But I think the tuition is too expensive. Nearly 7,000 people went.
If it is a small company, buy some of his books to read. There is really no need for class.