Like most of the classic
tombs *tomes* in philosophy, and later political economy and sociology Capital is a challenging read. One must have some background in philosophy and some background in classical economics to even begin to penetrate this text. Fortunately, David Harvey has put together an open on line reading course complete with lectures for each chapter.
So no excuses. Go buy or download a copy of Capital, read a chapter or two a week and then download the relevant lecture.