There’s a lot of advice out there for writers but one thing that comes up time and again is the advice to read. I whole-heartedly agreed with this advice. Read writers you admire and try to figure out what it is that they do that makes you like their work so much. Read books you dislike to try and figure out what it is that puts you off about it and avoid it in your own work. Read widely in the genre you write so that you can pick up on the tropes and cliches. Read in other genres to see how stories are crafted differently for different audiences.
But I would also recommend reading non-fiction. There’s a lot that can be learned from books that can be useful in your writing, but I’m not talking about researching a specific subject with a book in mind. Reading more broadly can give you a foundation of knowledge to build on when creating your fiction. Personally, I read a lot of popular science simple because I find it interesting, I’m also very keen on psychology, which I think is a really useful area for writers to read up on. As we create our characters, we want to have them feel believable, like real, solid people with personalities that make sense and whose actions are plausible in their circumstances. Even for those of us working in science fiction and fantasy, we want the characters to feel like real people. Reading psychology books can give us insight into what makes people act in certain ways and that can help as build more nuanced characters.
If you’re writing stories of political intrigue or dealing with the rulers of a fantasy land, it could be useful to read about historical rulers, but I would also recommend The Dictator’s Handbook, which I’m currently reading, a book all about the ways people gain and keep power, and the rules by which they’re able to rule.
There’s an old adage “write what you know” which a lot of writing coaches shy away from these days, but there is an element of truth to it. If you know a subject, you’re more likely to be able to write about it in a way that people believe in. At the very least, you can avoid the more obvious mistakes that will make experts on the subject cringe. If you want to follow this piece of advice, then the next step is to try and know more about as wide a range of topics as you manage. In other words: read more non-fiction.