The main sources of documentation on debconf for users are:

	- The debconf(7) man page is a complete debconf user's guide.
	- The debconf.conf(5) man page is useful reading if you want to use
	  a different debconf database setup.

Developers should refer to:

	- The debconf-devel(7) man page is a guide for developing packages
	  that use debconf.
	- The debconf specification, which is in the debian-policy
	  package, is a reference to all the available debconf commands.

Debconf's home page is at http://kitenet.net/~joey/code/debconf/