This document provides an overview of how to use Apple Photos, formerly called iPhoto, to make basic adjustments to photos. It discusses importing photos and organizing them into albums. The main editing tools covered are the histogram, which shows the distribution of pixels in the image, and the light, color, and black and white adjustment options. These allow adjusting exposure, highlights, shadows, brightness, contrast, saturation, color contrast, color temperature, and converting to black and white. The document encourages practicing editing a poorly lit or colored photo to improve it.