This is a great book on global strategy. Ghemawat provides a thorough framework for understanding globalization and how companies can thrive in it. Its basic assumption is that despite the apparent evidence, the world is not as global as some think – differences do matter. The world is actually semi-globalized, so companies need to choose strategies to manage the differences: adapting to them, exploiting them, or overcoming them. It has plenty of case studies of the globalization of companies, including Coca Cola. He also wrote a sequel called The New Global Roadmap (see link below).