This tutorial is not software specific and focuses on general theory around textures for game artists with a focus on texel density. It was produced to be clear and visual so is a quick read for 90 pages.
Primarily geared at beginner to intermediate level artists. There is likely something in there for all levels to refresh their knowledge and hopefully gain some new understanding of the topic.
- 90 Page PDF Tutorial
- A selection of "Checker Sheet" textures to use
Apologies for another upload. I replaced the PDF with a 66.6MB HD PDF.