On the Tech Chorus blog there's a new book review of a Packt Publishing book called "PHP 5 e-commerce Development" (by Michael Peacock). The reviewer covers some of the contents of the book as well as two main points - who should read it and what they could have done better.
You should read the book if you are learning PHP and new to e-commerce. Beginners trying to utilize out of the box software like Drupal CMS or OSCommerce tend to be frustrated sooner or later.
He discusses the contents of some of the chapters - building pages, creating whis lists, payment gateway integration. He also mentions a few things that the author might have done a bit better at including taking his claims of a "killer framework" down a few notches. He recommends taking all advice in the book with a grain of salt.