Textbook Maniac gave me the best price offer for one of my books and I sent mine to them, carefully wrapped in a ziploc bag (for waterproofing in delivery) in the actual shipping poly mailer via USPS media mail (free to me). It took a few days to get to them which I tracked through USPS, and took about 2 weeks for them to inspect the book and send me money, which was the long part. I got my payment through PayPal which I received an email about from Textbook Manic themselves, and an additional one from PayPal. This was my first time selling an old textbook online and I do not regret it! I just wish there was more communication between them receiving the book and inspecting. I think I will do business with them again!