We just have two new Yii books published: "Web Application Development with Yii and PHP", and "The Yii Book".
The book "Web Application Development with Yii and PHP" is actually an updated edition of "Agile Web Application Development with Yii 1.1 and PHP5" which was the first Yii book published back in 2010. Written by Jeffrey Winesett, this book introduces Yii by applying it to build a real world project management system. Find more information about this book
"The Yii Book" is written by Larry Ullman, a professional writer of many best-selling books. This book tries to explain the most important features and concepts in the Yii framework, using practical, real-world examples. Find more information about this book