Photoshop is an image editing software used for photos, graphics, and more. It has many tools to edit images, including selection tools, retouching tools, and layers. Layers allow editing individual elements without affecting others. Common tools include the move tool to reposition layers, selection tool to select areas, text tool for adding text, and eraser for removing parts of images. Filling tools allow filling areas with solid colors, gradients, or patterns. The eyedropper extracts colors from images. Understanding layers and these basic tools provides a foundation for using Photoshop.