Bertrand Russel's History of Western Philosophy
The summer before I left home for the first time for college, I experienced such severe cramps that the doctor sent me for a G.I. series of x-rays, which required that I take an industrial strength laxative. (I am not joking, this is a totally true story.) It turned out that all my problems were stress related because of my anxiety that I would fail at college.
I took a copy of Bertrand Russel's History of Wester Philosophy with me to the bathroom. The action of the laxative caused me to be in there for so many hours that I was able to read almost half the book.
It is really an excellent book to read if you desire an introduction and overview of philosophy.
My high school teacher made a face when I mentioned the book to him and said "Well, it is something of a pot-boiler."
But recently, I saw someone make a comment that it was fashionable for people to turn up their noses at Russel's History, or the writings of Will and Ariel Durant, but such critics most likely never gave the books a fair chance.
A different option is to visit
http://writersandreaders.com/
and pick out one or two of their comic book synopses of philosophers.
I read their book on Sartre and learned quite a lot. I showed it to one scholar and he remarked that the author of the comic book, Donald Palmer, is a respected scholar.
Just now, in an effort to search for details on Donald Palmer, I found this page, for a course which uses Donald Palmer's textbook on Philsophy (1995)
http://philosophy.tamu.edu/~sdaniel/251sy00c.html