Value-Added, Every Time. Grewal's value-based approach emphasizes that even the best products and services will go unsold if marketers cannot communicate their value. M: Marketing is the most concise, impactful approach to Principles of Marketing on the market, with tightly integrated topics that explore both marketing fundamentals and new influencers, all in an engaging format that allows for easy classroom and assignment management. A robust suite of instructor resources and regularly updated Grewal/Levy author blog provide a steady stream of current, fresh ideas for the classroom. Grewal/Levy's M: Marketing 6th edition is available through McGraw-Hill Connect®, a subscription-based learning service accessible online through personal computer or tablet.