Visible Ops Handbook added to books

README.md

@@ -227,6 +227,7 @@ Various resources, such as books, websites and articles, for improving your skil
 *Sysadmin related books.*
 
 * [The Phoenix Project: A Novel about IT, DevOps, and Helping Your Business Win](http://itrevolution.com/books/phoenix-project-devops-book/) - How DevOps techniques can fix the problems that happen in IT organizations.
+* [The Visible Ops Handbook: Implementing ITIL in 4 Practical and Auditable Steps](http://www.itpi.org/the-visible-ops-handbook-review.html) - Is a methodology designed to jumpstart implementation of controls and process improvement.
 
 ## Editors
 *Open source code editors.*