Don't think this has been posted, so:
Glyn Hughes takes the work of many prominent philosophers and "squashes" them, taking out only essential sentences and making some of them a little more readable. It's been useful enough for me so far. It also gives a handy reading time estimate at the right.
Also, Zen and the Art of Motorcycle Maintenance
by Robert M. Pirsig was quite entertaining; it was good fiction and had some very good explanations of elements of Philosophy; some good stuff about empiricism and the Molyneux Problem
. He relates a lot of it to motorcycles too : ) That's what really sparked my interest in the subject... The empiricism, not the motorcycles.
It was one of the bestselling philosophy-type-books of the 20th century or so the blurb tells me...