My school has been using tablets in the class for this year, and I've been assigned to write an article for the newspaper about it. Instead of using books this year, they photocopied old text books and have been distributing them as a PDF on the web. This is clearly illegal, right? I want to write about it in the article, but I can't find any precedent to show that this is copyright infringement. Can anyone shed some light on this issue for me? I would appreciate it!