Copywriters and book writers usually need a bachelor's degree in English, journalism, or a field that is closely related. When hiring copywriters, some companies look for people with a GED or high school diploma, an interesting portfolio of work, and relevant experience. Students should focus on subjects like writing, media, communications, and marketing while they are in school.
According to https://www.bookwritingbureau.com/book-printing/, Copywriters who specialize in one area may have a bachelor's or master's degree in that area. Some people with a bachelor's degree in computer science or engineering make software copies, for example. Most of the time, these copywriters learn how to write by doing things outside of school or by doing their own research and studying.