...0789721821 "The New XFree86" by Bill Ball, Prima Publishing, ISBN 0761531521 "Beginning GTK+ and Gnome" by PeterWright, Wrox Press, ISBN 1861003811 "KDE 2.0 Development" by David Sweet and Matthias Ettrich, Sams Publishing...
http://oss.sgi.com/LDP/LDP/intro-linux/html/x6784.html