Of the recommended books, are there any that would be good for a 13-year old?
I robots by Isaac Asimov, I remember liking Starship Trooper but did get bored during the philosophy bit. The foundation trilogy again by Isaac Asimov. Enders game is good but if I remember right has some language in it. The Martian chronicles are creepy but enjoyable. The empire trilogy was also by Isaac Asimov and that was really awesome.