The document provides an overview of the main tools in Photoshop, explaining what each tool is used for and its shortcut key. It describes selection tools like the lasso, move, and shape tools; tools for editing like the brush, eraser, and healing tools; and other tools like the crop, eye dropper, and type tools. It also covers tools for navigating documents like the hand, rotate, and zoom tools as well as setting foreground and background colors and using quick mask mode.