I have quite a bit of programming experience, but am just getting started with web applications. Having already done some with HTML, CSS, PHP, Javascript, and SQL, this book provided just what I needed by showing how all of the technologies can be used together effectively to develop a modular, scalable web application. I found it well written, to the point, and logically organized. The author has posted his example code on his website, which I am now using as a perfect lightweight framework for my application. The content was much easier to learn and understand than all of the frameworks I have been experimenting with, and gives me full control over my implementation. There are just as many ways to build a web application as there are to skin a cat, but the method described in this book is the best I've found to date.