I'm going with sunflower with this one - for books i would need a field guide to edible & medicinal plants for the area, which needs to have photos. Also i'd have to bring my Alice books with me since i have yet to get sick of those stories, as well another thick novel like the jungle book, arabian nights, grimms/asop fairy tales, or the complete collection of sherlock homles.
As of people off the top of my head my feil bio professor, or someone in that field, but he was hilarious and fun to be around. I'm not really sure about the other two though, my mom maybe, because i would miss her, or my partner? I would prefer someone who i dont constantly butt heads with, and can think logically in times of high stress, so that means none of my close friends.