I'm a working developer. Companies seem to know that developers can't write well, so they often arrange writing courses or invite external instructors for training. Every time I attended those sessions, I'd think "Oh, that makes sense," but once I left, I'd forget everything and go back to writing the way I used to. But this course was different. I've developed a habit of reviewing and revising even when writing a single sentence. It's only been a week, but I can definitely feel the improvement compared to my old writing. Before, whenever I posted something on the company intranet or chatted via messenger, people would almost always come to my desk to ask what I meant. I was honestly a bit scared to post anything, but these days that's decreased significantly. Right now it takes me a bit longer to polish my writing after I'm done, but once I get used to it, I think I'll be able to write cleanly from the start. I'm not writing this to brag about finishing the course, but because I'm genuinely amazed that I can feel the difference. By the way, I revised this review several times and ran a spell check before posting it.