If you have ever thought of a feature request for Flash then this book is for you. It teaches you how to make your own! Flash MX 2004 is in the title but it's just as useful for Flash 8. This book is worth the price just for the JSFL reference alone.

This book has gone under the radar based upon its title. It truly does not explain what this book can teach you.

Basically it teaches the basic Flash user that you can extend what Flash normally does for you in its normal authoring environment. Like create new drawing tools, create commands that perform complex real-time tasks instantly (similiar to custom macros), create custom user interfaces, add timeline effects (scripted tweens) to any object, and create scripted behaviors (prebuilt code components) to help almost automate your Flash development.

If your an exisiting Flash developer who knows how code with ActionScript and needs a way to streamline your development environment and development time, this is a book you shouldn't pass up.

If you are an advanced Flash user, Extending Flash MX 2004 may be just the right book for you. Written by veteran Flash developers Keith Peters (bit-101) and Todd Yard (ego7), this book introduces you to the world of extending Flash MX 2004 by teaching you how to create custom functions and features for the Flash MX 2004 authoring environment.

At first I had never heard about 'Extending' Flash MX 2004, but hopefully my following explanation may help you to understand this concept if you are new to this term. Imagine Flash MX 2004 being a customizable browser such as Firefox. In Firefox, you can download snippets of programs called extensions that add some cool, extra features to your browser. Creating new extensions for Flash MX 2004 is similar to developing extensions for your browser. Using a new language called JavaScript Flash (JSFL), you have the ability to create scripts, commands, behaviors, etc. that add new functionality to not a Flash animation, but to your actual Flash MX 2004 application itself.

This book teaches you how to use JavaScript Flash to create extensions - custom commands, menu items, and others things to help make repetitive tasks easier and enhance your Flash MX 2004 program. You start with the basics and progress towards complicated techniques. Early on you start by creating a command that, for example, allows you to take any shape and automatically arrange them on a user-defined grid. Towards the end, you move beyond simple commands and learn how to modify Behaviors, create custom interfaces using XML, and more!

Another great feature of this book is the expansive JavaScript Flash (JSFL) reference. The JSFL reference section contains all of the various items of the JSFL language that you can refer to when creating your own JSFL extensions. For any JSFL code item or property, you will find a description, the types of values it accepts, and a code example.

If you use Flash MX 2004 extensively and are interested in automating some of the repetitive tasks or adding new, useful features to Flash, you will find this book's coverage of this new topic excellent for intermediate and advanced users.

Keith and Todd command a huge knowledge of one of the more interesting and productive new features of Flash MX 2004, extensibility. The authors guide you on your way to learning about these new features starting off with easy concepts and then moving into more specific areas. This book is essential for anyone who develops with Flash MX 2004, the skills and tools that you get from the book will streamline your work flow and improve your productivity. From JSFL commands, xml to UI, custom behaviors and custom tools this book will load your Flash IDE with tools and widgets to get the job done faster and smoother. Excellent book!