ITIL: The Definitive Guide [Cheat Sheet]

In this guide, you'll learn what ITIL is, its history, the details of the framework, its processes, the five Lifecycle and four Capability phases that these processes are related to, the different versions of ITIL, and its progression over the years.  Furthermore, we'll discuss what's new in the latest edition, ITIL certification and career paths, its importance for IT Service Management and what the future holds for the framework. 

Consider this post the definitive guide to ITIL.