Download or read book Marketing by the Numbers written by Leland Harden and published by AMACOM Div American Mgmt Assn. This book was released on 2011 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measuring return on marketing investment doesn't have to be mysterious...even in the age of Web 2.0. This book provides you with a foolproof system for determining the effectiveness of all your marketing strategies, online and off. --Book Jacket.