How do the kids cope with the book being online? Last year my wife, who's a Biology/Chemistry teacher ran out of books. Cause the kids take them, never bring them back and the school doesn't enforce any kind of book return policy. Anyways, she ran out of physical books to give her kids and tried to get them to use an online version of the books. Magically 90% of the students had no internet access. Mind you these are kids with iPhones and Android smartphones. The book was pdf and was accessible through any web browser. The kids ended up complaining and the school ended up finding the money to buy new books.