Good experience with an ecommerce course?

I’d like to take a course to get started in Ecommerce. Does anyone have any recommendations?

I’m looking for a an overview course that will help me understand the major concepts/tools of Ecommerce and how they are interconnected. Lots of options out there but a lot of them look pretty guru-scammy, so hoping I can get a first-hand recommendation.

Would really appreciate any guidance or recommendations! Thanks!