I liked the approach of Pinker's book "A Sense of Style": https://stevenpinker.com/publications/sense-style-thinking-p... (https://stevenpinker.com/publications/sense-style-thinking-persons-guide-writing-21st-century) He gives writing tips based in how the mind works. Instead of a bunch of rigid rules, you can understand it based in cognitive theory.
The Sense of Style: The Thinking Person’s Guide to Writing in the 21st Century
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