For further reading

It is beyond the scope of this book to explain all the details of the industry-standard X Window System and OSF/Motif® window manager software. A number of fine books and articles are available commercially for customers who need more information.

The standard source of information about the X Window System is the X Window System set published by O'Reilly & Associates, Inc. The information in this book is particularly related to Volume 3 of the O'Reilly set (X Window System User's Guide, OSF/Motif Edition).