Are there any jellies here who have dyslexia or are very close to someone who has it?

My boyfriend is dyslexic and I would like to learn how to avoid making things harder for him. I am a very verbal/linguistic person, and I’ve noticed, for instance, that I write him long emails, while it takes him a lot of effort to write a short email. I’ve tried to make my writing more concise and space sentences and paragraphs better, but do you have any other suggestions?

Is it a very individual condition, or is it pretty much similar for most people who have it? (In other words, can I learn from other people who have it, or is the best route to just ask him?)

Thank you in advance for your input.