I just made a comment here, I might suggest that you do something like what I did. A solid understanding of parsers, lexers, and syntax trees would be an excell

I just made a comment here, I might suggest that you do something like what I did. A solid understanding of parsers, lexers, and syntax trees would be an excellent place to start if you're interested in writing your own language. Start with the basics, get a firm grasp of that, then move on. The 'language design' part of things seems to be basically just figuring out how to combine basic ideas (parsing, lexing, ref counting, etc...) in new, fancy ways (or not so fancy, depending on your goals.) If you're interested in compilers/languages then you're probably going to get mighty familiar with manipulating graphs, so I'd try to read up on some graph theory. Language design/implementation gives us the opportunity to mathematically prove correctness of various features, which can be fun, if you're into that kind of thing. I think another great way to learn about language design is to actually just look at other languages and play with them. Once you know know the basic concepts it's usually easy enough to guesstimate how various language features work behind the scenes just by using them. A lot of very smart people put a lot of time into making languages like Rust/Go/etc, so learn from them, and learn their weaknesses. p.s. I'm not sure how much you've already researched, so I apologize if this is above/below where you're at.