Apologies for the late response, though I've been thinking this over.
I'll stand by my earlier comment: read the classic economists themselves, directly, if at all possible. Smith, Malthus, Ricardo, Marx, Mill (both John Stuart and David), Carlisle, Toynbee, Marshall.
You don't need to read all of them or the works in full, but each of these addresses at least in some depth and detail the question of goods and their pricing behaviours, in ways that are not generally addressed today.
There are overviews and histories of economic thought and its development which should be useful. I've read Heilbroner (The Worldly Philosophers) and Backhouse (The Ordinary Business of Life), both of which provide a broad overview. Ha-Joon Chang has Economics: The User's Guide, which is a pretty good overview of various schools of thought.
I'm particularly impressed currently by Steve Keen, whose most recent book is Debunking Economics. He's been developing his ideas at a rapid pace and to an extent has overrun what's in the book. He's good to watch though.
John Kenneth Galbraith tends generally to discuss economics more-or-less in the terms I've been mentioning here, with The Affluent Society and Age of Uncertainty probably being good starting points.
I'm not much impressed by and generally strongly discount most Libertarian thinking, though if you'd like a sense of what I consider to be bad/poor economic theory, Howard Hazlitt's Economics in One Lesson and Murray Rothbard's Libertarian Manifesto might be considerations.
