emacs windows command and work flow

we cant split windows to have more windows and we can have different windows to have the same buffer or different buffers.

splitting windows:
cx 2 split vertically
cx 3 split horizontally

Using other windwos
cx o select next window

Displaying in another window
cx 4 b select buffer in next window and move to the next window
cx 4 co select buffer in next window
cx 4 f open file in next window
cx 4 d open dir in next window
cx 4 m start composing a mail message in another window
cx 4 . find a tag in the current tag table in another window
cx 4 r open a file readonly in the next window.

Deleting and Rearranging Windows
cx 0 kill the current window
cx 1 maximize the current window
cx ^ make selected window taller
cx } make selected window wider