Hi Rick, I write a chess blog (www.danamackenzie.com/blog) and I would be interested in showing the age quantile plots for chess ratings. But I'd like to ask your permission first.

Also -- separate issue entirely -- I am also a freelance writer working on a book for the American Mathematical Society. I was looking online for a visual illustration of low-rank matrices and came across the beautiful pictures in your post from August 30, 2017. That's how I found your blog, in fact. (Math first, chess second!) To use those images I would need to get formal permission from you, as the AMS would not allow me use them otherwise.

If you're willing to give permission for either of these items, please e-mail me or indicate how I can get in touch with you. Thanks!

Dana Mackenzie / Freelance Mathematics and Science Writer
scribe (at) danamackenzie (dot) com