In English we can express in several ways the idea of foreigners learning English, or teaching themselves something.
My title isn't totally clear so I'm looking for the name of the topic, not what you call a person who's doing it.
For instance, here are some of the common ways to express it in English:
General, but on your own:
- Self study
- Teach yourself
Specifically language learning, with our without a teacher:
- English for non-native speakers
- English as a second language
- ESL
What is the equivalent topic called in Japanese?
For instance, what might be on the sign for the section in a bookshop in Japan with Japanese textbooks for English speakers?
日本語教育
as you suggest though.