I would say that's part of the way to get better at writing. But I'd add, to paraphrase Stephen King from On Writing[1],
"To get better at writing, write a lot and read a lot."
Granted, King was speaking mainly to writers of fiction, but I think the advice holds just as well for technical writing or anything else.
[1]: https://www.amazon.com/Writing-10th-Anniversary-Memoir-Craft...
The other book I'd recommend is The Pyramid Principle[2] by Barbara Minto.
[1]: https://www.amazon.com/Writing-10th-Anniversary-Memoir-Craft...
[2]: https://www.amazon.com/Pyramid-Principle-Logic-Writing-Think...
https://www.amazon.com/Writing-10th-Anniversary-Memoir-Craft...
1) On Writing Well - William Zinser https://www.amazon.com/Writing-Well-30th-Anniversary-Nonfict...
2) On Writing - Stephen King- https://www.amazon.com/Writing-10th-Anniversary-Memoir-Craft...
3) The Elements of Style - Strunk & White - https://www.amazon.com/Elements-Style-Fourth-William-Strunk/...
The two most important points are concise style and active voice. Both of these habits are critical for SEs to write concise emails, specs and commit messages. You will even see improvement in more casual day to day interactions (via slack, SMS etc).
Source: his biography On Writing (http://www.amazon.com/Writing-10th-Anniversary-Memoir-Craft/...)
Here's the Amazon link if anyone else is thinking about reading it - https://www.amazon.com/Writing-10th-Anniversary-Memoir-Craft...