Air Quality

Everything was and is perfect. The book itself is just kind of overpriced.

book was great but subject was boring, as was the class

Absolutely horrible. This book is confusing and boring and reads like a radio manual. If you're looking to find a book to put you to sleep immediately, read this book. If your professor is assigning you this book, then I'm very sorry. Hope you had better luck than I did.

Very good