As the title of the book suggests, this isn't about GNU/Linux. It's                                                                                           
not about the GNU programs that come with the Debian distribution.                                                                                            
Instead, the book with its 600 pages (incl. a Debian sarge DVD) is                                                                                            
fully loaded. Martin F. Krafft, an active Debian developer, goes                                                                                              
through great lengths to describe the interplay of Debian's tools,                                                                                            
and the project's philosophy.                                                                                                                                 
                                                                                                                                                              
Krafft begins with an introduction to Debian, its history, and the                                                                                            
philosophy of free software to bootstrap the reader into the matter.                                                                                          
Introductory topics such as Debian's installation or the                                                                                                      
organization of the project are also covered and offer the reader                                                                                             
a comprehensive picture of Debian.                                                                                                                            
                                                                                                                                                              
Subsequently, things become more complex. He describes the Debian                                                                                             
package management in all its glory: the interaction between dpkg                                                                                             
and the frontends (apt, aptitude, synaptic, etc.), and                                                                                                        
peculiarities of the system, such as Debian package version                                                                                                   
numbering. Furthermore, a large part of the tools, that make an                                                                                               
administrator's day-to-day life easier, are presented and explained                                                                                           
in detail. The book is especially suited for administrators as it                                                                                             
identifies typical problems with the distribution, and offers                                                                                                 
solutions to counter them.                                                                                                                                    
                                                                                                                                                              
Topics of primary relevance to developers, such as packaging, are                                                                                             
also extensively covered. It struck positively that the author                                                                                                
also examines newer, alternative build tools, such as yada and cdbs,                                                                                          
and describes manual packaging, that is package creation without the                                                                                          
use of debhelper. This is one of the reasons why this book is of                                                                                              
particular interest to prospective developers and people, who have                                                                                            
to build their own packages for whatever reason. New maintainers can                                                                                          
draw from the book a good overview of the knowledge required to                                                                                               
become a Debian developer.                                                                                                                                    
                                                                                                                                                              
Krafft manages to illustrate topics such as APT pinning, which have                                                                                           
a reputation of being complicated and daunting, in an accessible                                                                                              
way. For inexperienced Debian users, this book will also be                                                                                                   
a pleasant read. It is not, however, a topical user-oriented book.                                                                                            
                                                                                                                                                              
Instead, the book targets administrators, developers, and those that                                                                                          
work with Debian on a regular basis. Nevertheless, even long-time                                                                                             
users will most certainly find new and interesting stuff between the                                                                                          
covers. Whoever considers the information on the Debian website to                                                                                            
be too dry will find in this book an enticing alternative.                                                                                                    
                                                                                                                                                              
In my opinion, the book has the potential to become the future                                                                                                
Debian Bible. It is nice to see that Martin F. Krafft regularly                                                                                               
publishes additional information and errata on the book's website                                                                                             
http://debiansystem.info .