"Software requirements - styles and techniques" is best book I have ever read on SW requirements.
I fully recommend it to anyone involved in requirements analysis. Not a "theoretical" book but one with great practical information. It has also fulll examples of requirement specs!
I invite anyone interested in taking look at slides that are available in author's website. They give you an good overview on books value. When I saw these slides and "Task & Support" requirements style I just had to buy this book.
I am not involved in any way with the author. I just want to give this good review because I feel the book can FINALLY shed light on requirements analysis with CONCRETE examples of requirements and not just some academic theories.