@Fernando phil,
I don't think anyone should suffer through reading the entirety of one of Aristotle's translated works, i.e.
Politics or
Nicomachean Ethics, much less someone who is just starting a study of philosophy! Seriously, just get the cliffs notes when it comes to Aristotle...the complete historical perspective is unnecessary, and the arguments lose nothing when written in a condensed and much more readable form.
Plato's early-middle dialogues seem to be a good place to start, as well as an introductory philosophy textbook, and a book on logic.
Maybe some of the more hardened academics here will disagree with this, but I think that the book
Plato and a Platypus walk into a bar would make a very good, very light, entertaining overview for someone just interested in the basics of philosophy mixed into a fun read. This book could also work quite well for a high school philosophy class, if combined with proper instruction.