My son isn't really into games. He IS really into older books, like the gutenberg texts. Think Tom Swift (i think he's read all that are online

, Pony Rider Books, and the list goes on.
I want a dedicated book reader so that I can have my laptop back, lol! And he can take it outside when we travel.
How many books can the ebookwise take? Can it take pdfs? Can it take a 10 year old handling it?
Sue