The document discusses techniques for layering and editing images in Photoshop. It describes adding a blank background layer at 100% opacity to design on top of. It also discusses adding long exposure images to the background layer without affecting the background, and using layers to selectively hide or show parts of images. Styles like Linear Light and Subtract are used to blend layers together while keeping colors visible. By layering and editing styles, the original images can be transformed into something completely different and unique. These techniques allow for easy experimentation and creation of pleasing and creative images.