want to show me somewhere else in the world you get taught Euro leather working techniques by an ex Hermes artisan for less ?
look at what the students produce, looks like good value to me if thats the quality you can potentially produce afterwards
Courses are always sold out, might not be cheap, but seems there are enough people who consider it good value
Valerie Michael also offers a shorter course, cost per day is pretty much the same & you have today for materials on top
https://www.leathercourses.co.uk/product/bags-design-construction-of-leather-bags/
anyway, back on topic. I doubt those books are going to cover what you need, its really so much easier being taught in person, especially for making bags, reading is one thing, someone teaching you as you do it is so much better.
I'd try & hunt out a class or two local to you.