The Handbook
is the application starter panel and is also capable of some useful applets and extensions. It usually resides on the bottom of the desktop.

Introduction
is the application launcher panel of the K Desktop Environment. Besides the K Menu, where you can start applications, is also capable of running docked applets like the pager, the taskbar or the clock, and extensions, such as child panels.
usually resides on the bottom of the desktop, but it can also be moved to any other border. Please report any problems or feature requests to the mailing lists.