This book is the combined work of hundreds of contributors to “The FreeBSD Documentation Project”. The text is authored in SGML according to the DocBook DTD and is formatted from SGML into many different presentation formats using Jade, an open source DSSSL engine. Norm Walsh's DSSSL stylesheets were used with an additional customization layer to provide the presentation instructions for Jade. The printed version of this document would not be possible without Donald Knuth's TeX typesetting language, Leslie Lamport's LaTeX, or Sebastian Rahtz's JadeTeX macro package.