Basic photo editing, general knowledge of the software (functions, tools, etc), or small projects for someone who knows the basics!
I've been using Photoshop in a professional setting for over 15 years. I have a wide range of experience ranging from photography (working with RAW images, photo retouching, photo manipulation, etc.), graphic design, fashion/textile design, and just about anything else you'd need to use Photoshop for. I've worked in print, web, and fashion both independently and for established companies. In all my years of experience, I've always enjoyed helping others learn valuable skills, and love sharing tips, tricks, and ways to work more efficiently.