Get in touch
I am glad to hear from anyone about the contents of this site, or about mathematics more generally.
No question or suggestion is too slight to be worth sending. I find every part of the subject interesting, so please do not hesitate to write.
If there is anything I can help with, please do get in touch. In my experience, questions are almost always better than the person asking them believes: a great many arrive prefaced with "This is probably a stupid question, but…", and I have yet to receive one that deserved the description. Yours is unlikely to be the first.