The popular open source KDE desktop environment for Unix was built with Qt, a C++ class library for writing GUI applications that run on Unix, Linux, Windows 95/98, Windows 2000, and Windows NT platforms. Qt emulates the look and feel of Motif, but is much easier to use. Best of all, after you have [...]
Explains how to understand and use Linux, covering installation, system administration, configuring desktops, and networking, along with topics such as the GNOME desktop, security, package management, and sound configuration.[...]