Stop pushing products--and start cultivating relationships with the right customers.

If you read nothing else on marketing that delivers competitive advantage, read these 10 articles. We've combed through hundreds of articles in the Harvard Business Review archive and selected the most important ones to help you reinvent your marketing by putting it--and your customers--at the center of your business.

Leading experts such as Ted Levitt and Clayton Christensen provide the insights and advice you need to:

• Figure out what business you're really...