Last week I finished reading the book Liferay 6.2 User Interface Development received from Packt Publishing for a review. I found fluent reading of this book, and very interesting especially for those facing for the first time the front-end development and want to learn how to create portals (themes and layout) by following the principles of Responsive Web Design (RWD). The approach from start to finish is a step-by-step with a good level of detail.
If you have a good experience in Java programming, Servlets and Java Server Pages, you can get the most benefit by reading this book. For developers and architects experienced Liferay this book will be useful because it shows the most recent technologies for developing portlets and their strengths and weaknesses.
It would have been interesting to include in the beginning of the book a chapter that illustrate all of the important innovations introduced by the new version 6.2 of Liferay for example: