Texturingxyz have posted a tutorial on how to use their displacement texturing in Nuke, Photoshop or Mari.
Free Photoshop Character Design Tutorial by Dan Luvisi
Stan Winston School are sharing a free Photoshop character design tutorial by Dan Luvisi.
Nondestructive Image Flattening and Reflection Removal
James Busby demonstrates nondestructive image flattening and reflection removal in Photoshop.