Computer Systems Research Group, UC Berkeley. 4.4BSD User's Reference Manual. O'Reilly & Associates, Inc., 1994. ISBN 1-56592-075-9
Computer Systems Research Group, UC Berkeley. 4.4BSD User's Supplementary Documents. O'Reilly & Associates, Inc., 1994. ISBN 1-56592-076-7
UNIX in a Nutshell. O'Reilly & Associates, Inc., 1990. ISBN 093717520X
Mui, Linda. What You Need To Know When You Can't Find Your UNIX System Administrator. O'Reilly & Associates, Inc., 1995. ISBN 1-56592-104-6
Ohio State University has written a UNIX Introductory Course which is available online in HTML and PostScript format.
An Italian translation of this document is available as part of the FreeBSD Italian Documentation Project.
Jpman Project, Japan FreeBSD Users Group. FreeBSD User's Reference Manual (Japanese translation). Mainichi Communications Inc., 1998. ISBN4-8399-0088-4 P3800E.
Edinburgh University has written an Online Guide for newcomers to the UNIX environment.