If you're looking for a PDF version of "The Wealth of Nations," there are several online sources where you can find a free or open-access version of the book. Some popular options include:

In the first chapter, Smith visits a pin factory. He notices that one man alone can barely make one pin per day. But if you divide the labor into 18 specific tasks (one pulls the wire, one straightens it, one cuts it, one sharpens it…), 10 men can produce .