It's really hard for me to recommend philosophy texts because so many of them require a philosophy degree to really appreciate. This is even the case with most internet resources, including Wikipedia, let alone SEP. Susan Blackmore's A Short Introduction to Consciousness is outstanding as a philosophy of mind introduction, but looking at my walls, even my freshmen texts strike me as too far down the conceptual path dependency road to serve as a lay introduction. Rereading one of them, Churchland's Matter and Consciousness, last year made me realize how I little of it I understood as a freshmen.
I remember enjoying Wil Durant's The Story of Philosophy as a young teen, but it strikes me as crap now. I do think many of the comic book introductions to philosophers are actually quite good, but I've only ever perused them at friends' houses and bookstores.