**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:** <dl> <dt> January 1990: <dd>Athena First Edition.</dd> </dt> <dt> September 1990: <dd>Athena Second Edition.</dd> </dt> <dt> December 1990: <dd>Motif First Edition. Customized for Motif 1.1.</dd> </dt> <dt> August 1992: <dd>Motif Second Edition. Revised for R5 and Motif 1.2.</dd> </dt> <dt> April 1993: <dd>Athena Third Edition. Revised for R5.</dd> </dt> <dt> August 1993: <dd>Motif Edition. Minor corrections.</dd> </dt> <dt> February 1995: <dd>Motif Edition. Minor corrections.</dd> </dt> </dl>