I'm confused by how Mercantilism works, and I can't seem to find any books on it. I know it has something to do with balance of trade between nations, which also involved their colonies. Colonies produced just for their parent nation, but the colonies weren't feudal, or were they a kind of international feudalism where they produced for the parent country but kept some for themselves? Was there trade in currencies, or was everything done with gold reserves? Or was it done with straight trade of goods across nations?