Emacs: View “man” Page
How to read man page in emacs?
man command calls the external unix
man program, while
woman is written in emacs lisp.
On Linux, they perform about equally well. On Microsoft Windows, you might try one or the other to see which you prefer.
How to read GNU “info” manuals inside emacs?
info 【Ctrl+h i】.
or, buy something from Best Keyboard for Emacs