Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sloppy testing of first exercise diminishes book's usefulness

When I purchased this book I wanted more than a hip, new-age way of getting me to absorb the material, I wanted the exercises in the book to work. Like myself, the 30 or so other reviewers were influenced to purchase the book by the pictures, cartoons, and sometimes irreverent prose. None of us could test out the book's exercises in the store. I can't vouch for the other reviewers, but once I got the book in front of my computer I began at the beginning and in the first exercise, Uh oh, problems. I am not alone. One just has to go to the HeadFirstLabs online forums to read that the exercise apparently wasn't tested on the world's most popular browser, IE6. If the first, and what logically should prove to be the simplest exercise in the book is flawed, what disappointments and frustrations do the following 620 pages have in store for us IE users.