GNU/Linux Desktop Survival Guide
by Graham Williams
KDE: Desktop Management
KDE is a popular alternative to Gnome. I don't use KDE so there's not a lot I can say about it. Feel free to contribute.
Various KDE applications are described in this book, in limited detail. See Chapter 57 for Magellan, the KDE personal information manager, and Chapter 52 for Konqueror for the KDE file manager.