Blend Modes – A Practical Guide for Photoshop, Blender, Premiere and Others
A short one, but there's a lot here. Trying a more general design topic that isn't blender specific – should I make more of these?
It's a guide for blend modes – things like "multiply", "screen" and "overlay" – explained with practical examples in Photoshop, Illustrator, Indesign, Premiere, After Effects and Blender.
Check out Mockup3d.com – online 3D mockups for designers – if you haven't already.