Here’s a list of video tutorials covering the basic interface and functionality of Photoshop, from using the interface to working with image files and layers.

Video tutorial of photoshop fundamentals

Get to know Photoshop

Photoshop video tutorial for image resizing basics

Image Resizing Basics

Thumbnail for "Working with Layers" tutorial

Working with Layers

Video tutorial for adjusting image quality in Photoshop

Adjust the image quality (pay extra attention to the last step – adjustment layers)