**The X Windows System:** - [Volume 0: X Protocol Reference Manual](/works/OL4347519W/) - [Volume 1: Xlib Programming Manual](/works/OL4347525W/) - [Volume 2: Xlib Reference Manual](/works/OL19371049W/) - [Volume 3: X Window System User’s Guide](/works/OL2158084W/) - [Volume 4: X Toolkit Intrinsics Programming Manual](/works/OL8272931W/) - [Volume 5: X Toolkit Intrinsics Reference Manual](/works/OL1643765W/) - [Volume 6: Motif Programming Manual](/works/OL3862243W/) - [Volume 7a: XView Programming Manual](/works/OL3862248W/) - [Volume 7b: XView Reference Manual](/works/OL3862247W/) **Printing History:** <dl> <dt> September 1991: <dd>First Edition.</dd> </dt> <dt> July 1992: <dd>Minor Corrections. New Chapter 20 added.</dd> </dt> <dt> February 1994: <dd>Second Edition. Updated to cover Motiv 1.2 and UIL.</dd> </dt> </dl>