From Wikipedia

My name is Steven G. Johnson. For more about me, see my home page:

ORCİDThis user has the ORCID identifier:

I agree to multi-license all my contributions, with the exception of my user pages, as described below:

Multi-licensed with the Creative Commons Attribution Share-Alike License versions 1.0 and 2.0
I agree to multi-license my text contributions, unless otherwise stated, under Wikipedia's copyright terms and the Creative Commons Attribution Share-Alike license version 1.0 and version 2.0. Please be aware that other contributors might not do the same, so if you want to use my contributions under the Creative Commons terms, please check the CC dual-license and Multi-licensing guides.

I'm not a professional photographer or illustrator by any means, but I've posted a few pictures and illustrations of mine that seemed helpful to the articles in question:

My wife, C. Horwitz, has also given me permission to upload, or help her upload, some of her photos under the GFDL: