On the "Ask About PHP" blog today there's a new book review looking at the Wrox Press book "Professional CodeIgniter" (by Thomas Myer):
Written by Thomas Myer, this book has 10 chapters that walks the reader through the world of Codeigniter programming. It takes a unique approach of showcasing a client-programmer scenario. Throughout the chapters, you'll be peppered with meetings with a hypothetical business owner named Claudia, who wants to build an online shopping site. You will get to witness the whole development cycle from gathering requirements to launching the end product.
The book includes an overview of the Model-View-Controller layout and some of the basics being working with the CodeIgniter framework. Despite its 200 pages, the reviewer can't really recommend it to anyone other than the CodeIgniter beginners and maybe even have the "Professional" part of the title dismissed.