Typesetting\Book Design Courses (with InDesign preferably)

Hi Folks

Wondering if anyone can recommend intermediate\advanced online courses in Typesetting\Book Design, preferably using InDesign, but not necessarily (e.g. if it covers more traditional techniques, to increase awareness of the topic).

I've already designed\typeset several commercial titles, but am aware that I'm self-taught, and every so often I find a hole in my knowledge, so am looking to build a more solid base for moving forwards in typesetting and book design more generally.

Preferably I'm looking for courses that you would personally recommend, as I've already found some from Google searching, but hard to tell how good they are.

Any recommendations appreciated!