Confessions of an Advertiser written by david ogilvy for his children is a very good book. I think good copywriting must be related to the advertising industry. This book makes you understand how a good copy is honed ideologically.
There is another book that I think I should also read. It is called Sensory Brand. This book is recommended by Fan Deng Book Club. After reading it, it is very helpful for me to engage in planning work. Don't think that copywriting is writing, that is secretarial. The important duty of copywriting is to make your work sell.