"I can't think of a comparable offering - even books devoted entirely to KPIs and marketing metrics - that actually have numbers and calculations on each page. If you want to truly learn how to compute the ROI on your content marketing, this should be your first stop. Frankly, even if you're not a math guy, the authors take you through each calculation step by step - and even if you're not going to be the person doing the calculations at your firm, it's still, I think, of tremendous use to understand the factors and drivers that underlie a particular metric."