An alternative or supplement to books would be to do static code reviews with someone. They can give feedback that a book can't. For example, ask the reviewer

An alternative or supplement to books would be to do static code reviews with someone. They can give feedback that a book can't. For example, ask the reviewer what would make the reviewed code easier to understand. Also, you could look up open source projects in the technology stack that you use and compare their code base to yours. In other words, follow a good example if it exists.