I want to buy a better brush and book to learn calligraphy. What do you recommend?

First of all, you can learn China's calligraphy. If you are a child, you can buy wool. If you are an adult, you can buy from the double brush. You can use about 30-50 yuan at first. With the deepening of learning brush, you can use Langhao by changing some brushes that suit you. Generally speaking, we should start with regular script. We can study Ou Yangxun's Jiucheng Palace or Yan Zhenqing's Yan Liqin Monument first. Regular script is the foundation, and you can master the structure of characters well by practicing regular script. After learning regular script, you can learn official script or seal script, and then running script. You can choose better official script, seal script and practice Li. There are many running scripts, including those of Mi Fei and Wang Xizhi. After practice, I can create more and improve myself by participating in the competition.

I hope it helps you, come on! Communicate more.