I know comics are used fairly often in K-12 and in English as Second Language classes. I thought some of you might be interested in a college example and a professor who is creating her own comics to illustrate class content. Here's the podcast:
https://barbihoneycutt.com/blogs/podcast/episode-72-using-comic-books-in-the-classroom-with-dr-krista-gehring
A wise decision.
We use them in Denmark to help teach foreign languages to young children and teens. I learned to read both Dutch and English at young age much faster than I would have without doing so, by first being read to, and then learning to read, by reading comic books. As an adult, reading foreign comic books has helped my German, Spanish, Danish, and Swedish. And also reading mainly comedy comics has given me a better understanding of the subtle differences in senses of humour in the different countries.
I have some friends who took up learning the Italian, French, and German languages for the purpose of reading comic books from those countries, and despite learning fairly little in the school classes they'd taken in their primary schooling, when they decided to learn for and from reading the comics, the combination of reading the comic books and traditional use of native speaker tapes and grammar self-study during their 20s or 30s has resulted in their being surprisingly competent in both reading and speaking those languages.