I’ll start my description of a tiling window manager by asking a question: Have you ever used window snapping on your desktop? Window snapping is when you are able to move an application to either the right or left edge of the screen, and the desktop interface automatically “snaps” the window such that it takes up half of your display.
Link: The best tiling window managers for Linux, and what they can do for you
via http://www.zdnet.com