There is some new documentation that I think is essential for all prospective Debian developers to read. It's in the dpkg_1.3.6 package, which you can find in the project/experimental directory on our FTP archives. Since this is unreleased developmental software, you might not want to install it (or you might want to make sure your backups are up to date, and keep them that way). However, it's worth unpacking the package without installing it just to get the documentation. It's in HTML form, under /usr/doc/dpkg in the package. Included are a new "Dpkg Developer's Manual" and "Debian Policy Manual", both by Ian Jackson.
Thanks Bruce