Aimed at those new to the system seeking an overall understanding first, and written in a clear, uncomplicated style, this reprint of the much-cited 1993 classic describes the standard windowing system for Linux, UNIX, and other operating systems. Widely recommended as a course text, this thorough representation of the entire X window system allows complete understanding of the relation between its various components, and how they interact with applications. Although this is a technical book, it does not assume advanced programming or system-administrative experience--great for those laying a foundation for later work. This is an ideal guide for system and network managers, programmers, and technical-end users.