Wei Zi is a book.

Wei Zidou's books, like the Eight Characters and Zhouyi, are easy to learn, but it's good if you have enough time to learn traditional culture. This book is published in Taiwan Province Province, and has a traditional vertical edition. There is a short version on the Internet at present. You can search "My First Book of Wei Zidou", which is lively and interesting, and it is a good book for getting started.