Other times you will create them yourself using a text editor; this is the traditional way to do it, but you have to learn the peculiar format of each file - inconvenient at first, but it can give you a lot of power.
"Debian GNU/Linux: Guide to Installation and Usage"
John Goerzen and Ossama Othman
Some programs provide documentationin info format, and you can use info to view that documentation.
"Debian GNU/Linux: Guide to Installation and Usage"
John Goerzen and Ossama Othman
These two innovations on type and on format constituted a veritable revolution in the printing press and in the book trade, which now began to reach a far more extensive market than it had ever touched before.
"The Booklover and His Books"
Harry Lyman Koopman