Hey Michael, welcome back—and props to you for reigniting the passion. Leather restoration is such a unique craft, and there’s real demand for skilled hands in that space. You’ve already got the foundation, so building back up with some fresh resources is a smart move.
Books
“The Leatherworking Handbook” by Valerie Michael – Great for fundamentals and tools.
YouTube Channels
The Leather Repair Company (UK-based) – They’re pros at restoration, cleaning, recoloring, and even training.
Other Learning Resources
Reddit's r/Leathercraft – Active and super helpful.
Skillshare/Udemy – Look for courses on leatherwork and restoration (some even offer kits).
Manufacturer Websites – Companies like Fiebing’s, Angelus, and Saphir often provide tutorials tailored to their products.