inkscapee (1994086) writes "Without Debian we are nothing. Debian is the most influential and important Linux, and is unique for being the largest, oldest, 100% non-commercial community-driven distro. "...just under 63% of all distributions now being developed come ultimately from Debian. By comparison, 50 (15%) are based on Fedora or Red Hat, 28 (9%) on Slackware, and 12 (4%) on Gentoo."" Link to Original Source
The best book on programming for the layman is "Alice in Wonderland";
but that's because it's the best book on anything for the layman.