Photomorphis - THE ART OF TEXTURE: A VIDEO GUIDE
https://photomorphis.com/store/learning/art-texturing-video-guide/

Finally... All the answers in one place from the artist who pioneered the technique!
This is Doug Landreth's definitive guide to textures in Photoshop and ON1.
Plenty of before-and-after examples, detailed step-by-step instruction and Doug's creative insights make this video guide a must-have for every fine art photographer.
It's the next best thing to attending a Photomorphis Art of Texture Workshop and comes with two advantages: You can learn at your own pace and rewatch as many times as you want... You own the video!