Marquee Tool
Using the shortcut 'M', you can access the Marquee Tool,
Rectangular Marquee Tool - Allows to create Rectangles
Elliptical Marquee Tool
Single Row Marquee Tool
Single Coloumn Marquee Tool
Lasso Tools
Polygonal Lasso Tool
Magnetic Lasso Tool
Lasso Tool
Transforming Selections
Scale - CTRL+T then hold SHIFT
Rotate - CTRL+T then placing the mouse to the comer of the selected area,
Skew/Distort - CTRL+T then hold SHIFT+ALT,
Perspective CTRL+T then SHIFT+ALT+CTRL while dragging
Saving and Loading Selections
To save a selection go to the menu bar and hover over 'Select' then on the drop down menu
'Save Selection'
These selections are saved as Alpha Channels
To load a selection go to the menu bar and hover over 'Select' then on the drop down menu 'Load Selection