The Society of Authors’ Educational Writers Group Spring Seminar takes place in London, UK, on 9th June, and promises to be an informative day.
There are sessions on English Language Teaching, using textbooks in classrooms, generating income online and optimising the author-editor relationship.
Details here: https://www.societyofauthors.org/Events/Events/EWG-Seminar-Day.
Disclosure: I’m on the EWG committee — but I’d promote the seminar day anyway. They are always worth attending.