KDE should be properly installed on your system before moving on. Most every chapter (and certainly the next one) requires this.
You should now have some understanding of what makes KDE such an exciting project and enticing application development platform. If you're not convinced, read on. Once you see for yourself how powerful and well-organized the libraries are you won't want to develop anywhere else. If you're already convinced, well, read on—we're going to write our first KDE application in the next chapter!