**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/OL18304438W/) - [Volume 6: Motif Programming Manual](/works/OL3862243W/) - [Volume 7a: XView Programming Manual](/works/OL3862248W/) - [Volume 7b: XView Reference Manual](/works/OL3862247W/) **Printing History:** September 1988: Athena First Edition. July 1989: Athena Second Edition. Revised to refelct Release 3. October 1989: Athena Edition. Minor Corrections. May 1990: Athena Third Edition. Revised to reflect Release 4. January 1991: Motif First Edition. March 1992: Motif Edition. Minor corrections. January 1993: Motif Edition. Minor corrections. May 1993: Motif Edition. Minor corrections. August 1993: Motif Edition. Minor corrections.