Learning Puppet 4: A Guide to Configuration Management and Automation
This book teaches you how to use Puppet 4 for configuration management and automation. If you are an experienced DevOps engineer, this book covers in detail the changes and improvements in Puppet 4 and how to make best use of them.
You can read the original article at
http://www.netconsonance.com/2015/04/learning-puppet-4-early-release-is-now-available/. Comments are welcome here or there as you please.