I purchased this book to learn how C++ library-based programming is done in the real world, not in the classroom where we must reinvent the wheel for every project.
I was skeptical when I read the other reviews, but I am extremely impressed with this book. I have not had the chance to sit down and read the book cover to cover yet. However, I have cracked it open a few times when I've gotten stuck, and have been amazed that I have been able to quickly and effortlessly find clear, concise, and thorough answers to every STL question that I've had.
The book is extremely well written: it's well structured, well indexed, and easy to digest. Extremely cost effective.