A very useful trick for copyediting and proofreading is to use a text-to-speech tool. The default voice on Mac is quite good. I use it all the time to proofread intros, and explanation sections in my books. For math-heavy or code-blocks, it's not quite as good... but actually works OK for Python. See [1] for how to setup a keyboard shortcut.

[1] https://docs.google.com/document/d/1mApa60zJA8rgEm6T6GF0yIem...