Peter Martin has technically reviewed some Joomla books to check & improve the quality of its content.

Book reviews:

programming joomla plugins Programming Joomla! Plugins
by Jisse Reitsma
(October 2014)
Joomla 3 beginners guide 2nd edition - Eric TiggelerJoomla! 3 Beginner's Guide Second Edition
by Eric Tiggeler
(July 2014)
joomla 3 beginners guide - eric tiggeler Joomla! 3 Beginner's Guide
by Eric Tiggeler
(March 2013)

joomla-seo-ric-shreves Joomla! SEO
by Ric Shreves
(July 2012)


joomla 2.5 beginners guide - eric tiggeler Joomla! 2.5 Beginner's Guide
by Eric Tiggeler
(March 2012)

joomla 1.6 First Look -  Eric Tiggeler Joomla! 1.6 First Look
by Eric Tiggeler
(March 2011)

Joomla 1.5 Templates Cookbook - Richard Carter Joomla! 1.5 Templates Cookbook
by Richard Carter
(July 2010)