Almost all tools can be summarized with one word [1]: Marquee, Move, Lasso, *Magic Wand, Heal, Paintbrush, Clone, Stencil, Eraser, Paintbucket, Smudge, Dodge/Burn, Path, Text, Pen, Shapes, Hand, Eyedrop, Hand, Zoom.
[1] https://annhjelle.wordpress.com/assignments-2/assign-12-spac...