On the How to get an Agent thread, page 3. In any event, here is the course:
https://www.faberacademy.co.uk/creative-writing-courses/who-do-you-think-they-are-character-creative-writing-course-gic2.html
The course is horrendously expensive, and the course info is a little misleading in that the tutoring is only in the morning. Nevertheless, I, and everyone else on the course was blown away. Lots of theory and exercises to enhance learning.