James is the author of five technical books about open source software and a long-time member of the open source community. James authored the first (and this second!) book about Puppet and works for Puppet Labs running Client Services.

James speaks regularly at conferences including OSCON, Linux.conf.au, FOSDEM, OpenSourceBridge, DevOpsDays and a number of others. He is a past president of Linux Australia and has run Linux.conf.au and serves on the program committee of Linux.conf.au and OSCON.

James is Australian but currently lives in Portland, Oregon. His interests include cooking, wine, political theory, photojournalism, philosophy, and most recently the Portland Timbers association football team.

James Turnbull

Jeff is a long-time Puppet community member and open source software advocate. He started off with computers and Unix at a young age thanks to his parents' company, Summit Computer Services. Before graduating with his BS CSE degree, Jeff managed Mac OS X and Linux systems at the Mathematics Department at Ohio State University where he got started with configuration management and Puppet.

Jeff works for Puppet Labs, hacking on code and working with customers to improve their Puppet deployments. Jeff also speaks regularly at conferences including Apple's World Wide Developer Conference, Macworld, Open Source Bridge, Velocity, and others. He travels the world teaching and consulting on Puppet.

Jeff grew up in Ohio and currently lives in Portland, Oregon. His interests include hacking on microcontrollers, anime, photography, music, hiking, and long walks on the beach.

Jeff McCune