diff --git a/free-programming-books.md b/free-programming-books.md
index 17ba4e8973e1beda813ba47bfab2a5bb11aabc80..444d29e1f7c2183fcbd082dc1f551eeeee9ae045 100755
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -126,6 +126,7 @@
 * [Websphere](#websphere)
 * [Windows Phone](#windows-phone)
 * [Windows 8](#windows-8)
+* [Worflow](#workflow)
 
 
 ###Meta-Lists
@@ -1266,3 +1267,6 @@ See also [LaTeX](#latex)
 
 ###Windows 8
 * [Programming Windows 8 Apps with HTML, CSS, and JavaScript](http://blogs.msdn.com/b/microsoft_press/archive/2012/06/04/free-ebook-programming-windows-8-apps-with-html-css-and-javascript-first-preview.aspx)
+
+###Workflow
+* [Declare Peace on Virtual Machines. A guide to simplifying vm-based development on a Mac](https://leanpub.com/declarepeaceonvms)