Seriously. I like to study textbooks on the train, but can't carry much more than a tablet and laptop. I'd pay for the hardback and more, just for an eBook. P

Seriously. I like to study textbooks on the train, but can't carry much more than a tablet and laptop. I'd pay for the hardback and more, just for an eBook. Preferably in a format that let's me highlight and take notes.