Peter Lieverdink (also known as cafuego on IRC/identi.ca, engineer on OurDelta builds and for Open Query) has co-authored a book that’s available since Monday. The title is Pro Linux System Administration published by Apress.
These days some people don’t want to bother with system administration, and either hire or outsource. Others want to find out more and do things themselves (home and small office use), and that’s the intended audience for this book.