This book is not for beginners, intermediate or even advance joomla users. It is for EXPERT ONLY, but if you are an expert in joomla you probably shouldn't need this one. The author assumes that his target audience have solid knowledge in Joomla and especially PHP such as different types of classes, inheritance, methods and overloading methods, functions, object data types, arrays, MVC, SVN and other things.

If you don't know much of PHP make sure that you have Advil, excedrin, aspirin or other headache medicine will do to relieved your confusions and hair-pulling scenarios.

And don't forget to visit the author's beautiful and very state-of-the-art website [...] which everyone's dream website to have.