Who are the Xu people in the Calligraphers Association?

I don't know where the calligraphy association you mentioned is. If you want to learn calligraphy, I personally suggest that it is best to talk to a teacher who graduated from calligraphy or won a prize in a national exhibition. They can teach you more systematically. You may hear others say that someone's elder or friend's handwriting is good, but that's just what they think. The so-called experts watch the doorway, laymen watch the excitement, and those who really write well are those who have profound calligraphy skills or have received strict and systematic calligraphy education and inheritance. In addition, in fact, the tools for writing brush characters are also very important. First of all, if it is paper or paper, the novice can brush the edge paper, that is, brush the edge paper with Mi Zige's mechanism. I think the brush should be the most important. If you want to buy a brush, I suggest you find this article and read "Top Ten Brush Brands in China (with Selection and Maintenance Methods of Brushes)", which introduces the selection and maintenance methods of brushes in detail. I hope it helps you. And copybooks. If you don't know how to choose a copybook, you can also read How to choose a brush copybook for beginners (with 46 classic calligraphy introductory copybooks), which lists a lot of Copybook for calligraphy, which may be helpful to you.