man pages for command line completion

[Joe Mc Cool <joe@benburb.demon.co.uk>]

Please,

using the bash shell, where is the documentation for command line 
completion ?

I cannot seem to find it in:

   man bash

I understand the basics of using TAB (or ESC) to complete comand lines, 
but I do not understand some of the other niceties like ESC ESC . or ESC 
ESC NUMERIC.

There may be other useful tricks I am not aware of.

Thanks

Joe Mc Cool