Simple Cohort Analysis

By April 20, 2015 No Comments

Simple Cohort Analysis

About David Urmann

David Urmann is an entrepreneur and avid traveler. He keeps an authoritative expertise on many subjects including SEO, SEM, UI/UX Optimization. An avid traveler and a guide book writer Dr. Urmann is the founder of Touristlink.com one of the world's most active social travel networks.