Data-Driven Marketing: The 15 Metrics Everyone in Marketing Should Know

By: Mark Jeffery

Talk Triggers: The Complete Guide to Creating Customers with Word of Mouth

By: Jay Baer, Daniel Lemin

Ten Deadly Marketing Sins: Signs and Solutions

By: Philip Kotler

The 22 Immutable Laws of Branding: How to Build a Product or Service Into a World-Class Brand

By: Al Ries, Laura Ries

This Is Marketing

By: Seth Godin