I've just posted the latest installment of my podcast of my book Philosophy: The Classics (3rd ed.). It's the chapter on the notoriously difficult Critique of Pure Reason. Life is short, so I've provided what I take to be the essence of the book summarised in 13 minutes of podcast. Inevitably this involves some simplification and glossing over of arguments...(OK, quite a lot)...I'd like to cite Yogi Berra in my defence:
"You've got to be very careful if you don't know where you're going, because you might not get there."