It's fairly common for some books/publications, etc. to be made available at BALUG and other User Group meetings.
These below are currently (subject to availability and/or request) brought by Michael Paoli and/or others to
and some other user group meetings
Berkeley Unix User Group (BUUG),
Bay Area Debian (BAD),
Berkeley Linux Users Group,
Ubuntu Hour (San Francisco & Berkeley),
and sometimes San Francisco Linux Users' Group (SF-LUG)
Other folks may also bring (some of) these and/or additional books, publications, etc.
Want to increase your odds of getting one of these books? :-)
I'll consider these factors:
The immediately below item(s) courtesy of Pearson Education's User Group program (they'd love if one writes a review of these, and especially on-line, and most especially on Amazon):
Docker Containers LiveLessons
By Christopher Negus
Published Dec 15, 2014 by Addison-Wesley Professional. Part of the LiveLessons series.
2.5+ Hours of Video Instruction