Complete list of electives for middle and high school

If you are looking for ideas for electives for your middle or high-schooler, I’m compiling a complete list of electives here. If you know of other electives, and/or where they are available, leave a comment and I’ll update this list. Kids enjoy school more when they can study things that interest them. I hope it becomes a useful resource to parents, teachers, administrators and students. Suggestions welcome.