I am a full-time website developer and I had been trying to learn JavaScript for the past two years. I purchased numerous books, and couldn't seem to get the hang of JavaScript until I bought Joe's book. I able to learn the basics of JavaScript in less than a week. I now use JavaScript everyday and can call myself a JavaScript programmer. In fact, I would even recommend this book for experienced HTML coders who are interested in learning programming. Joe has done an excellent job explaining Arrays, Variables, Objects, Loops, etc. These are functions that are found in almost all programming languages, including Visual Basic, C, C++ and Java. After I finished this book, I started teaching myself Visual Basic and I have found that many of the things that Joe taught me apply to VB. If you are looking to expand your skills beyond HTML, this is the book to buy.