The late Peter Drucker once said, "The purpose of business is to create and keep a customer." How wise! And what a customer-centric presentation of a business's main goal especially for startups: create and keep customers. But, how can entrepreneurs as well as startups rapidly and inexpensively acquire, retain, and grow customers? To answer the above question, this presentation introduces the concept of "Customer Growth Hacking" while visually defining it. As can be seen in the above slide, Sean Ellis's concept of "Growth Hacking (GH)" is a subset of "Customer Growth Hacking (CGH)." While Growth Hacking focuses on technology, marketing tactics, and PR to accelerate customer growth, Customer Growth Hacking deals with a more holistic perspective. In particular, Customer Growth Hacking involves strategies as well as tactics for rapidly and inexpensively discovering as well as solving Big Urgent Market Problems (BUMPs). Customer Growth Hacking uses an experimental (Lean Startup) approach while continuously applying the O.T.H.E.R. Loop to discover and solve customer problems. O.T.H.E.R. is an acronym for Observe different; Think different; Hypothesize different; Experiment different; Reflect different. Over the years, I've developed many, many tools for holistically discovering and solving problems in any domain. All these tools are now brought together and tightly integrated under the umbrella of Customer Growth Hacking. Please note that Customer Growth Hacking is synonymous with what I sometimes call "Leaner Problem Solving." The best of luck as you apply Customer Growth Hacking to rapidly and inexpensively discover as well as solve BUMPs.