Photo editing programs

A list of 148 photo editing tools and apps. I personally use GIMP and my workflow contains Photo
 Mechanics, DX0 and Canon DPP.

Here is the list from Peta Pixa.

http://petapixel.com/2016/11/01/148-photo-editing-tools-apps/

posing pitfalls

A completely free downloadable checklist that covers 5 Things that Ruin a Pose & How to Fix Them. Referring to this list has helped me avoid these common mistakes with quick and actionable ways to fix them.

Free guide