Teresa Greenway of Northwest Sourdough has a great sale on her online courses.
If you like sour flavored sourdough, you owe it to yourself to try her course, “Bake Sanfranciso Style Sourdough Bread”. I have baked hundreds of these tasty loaves.
Happy Thanksgiving!
Danny
Here's her main page at Udemy, listing all 13 of her courses:
https://www.udemy.com/user/teresalgreenway/
Here's her own website:
https://northwestsourdough.com/
Here's her author page at Amazon:
https://www.amazon.com/Teresa-L-Greenway/e/B00DULWTVY?tag=froglallabout-20
I bought all four of her basic bread ebooks, Part I, Part II, Part III-A, and Part III-B.
Her "Make Your Own Sourdough Starter" book is "mostly" included in Part I, but it does go into more options.