The shift in emphasis between this and the previous books is more than skin-deep. The choice of topics is very different, even though there is inevitably some cross-over. The aim of the book is to help migrate business users to a new operating system, so there is much more about networking, user support, user administration and so on and less on multi-media, games, graphics and so on. Topics such as file-sharing with Windows using Samba, Linux thin-clients and implementing directory systems using LDAP all get a good airing.
It's not just the operating and network system infrastructure that is covered. Business applications are also well-covered, with an emphasis on OpenOffice.org as a replacement for Microsoft's offering. The material on email looks both at Linux-hosted mail services using Postfix (though Sendmail is mentioned as well), and at using Linux mail clients to Microsoft Exchange. In all areas the book looks both at command-line tools and GUI options. The author makes clear that there is no shying away from the command-line and that learning to love the shell is essential for the Linux user and/or administrator."