Robert Curth is a simple engineer working at gutefrage.net who reviewed this book through the eyes of a Chef novice.
Julian C. Dunn is a Senior Consultant with Opscode, Inc., the developer of Chef. He has 15 years of experience in software development and infrastructure operations at companies of various sizes across industries as diverse as finance, media/broadcasting, Internet security, and advertising.
Prior to joining Opscode, Julian was a Senior Operations Engineer at SecondMarket, Inc., where he managed infrastructure in Amazon EC2 using Chef. Before SecondMarket, he worked as web operations manager at the Canadian Broadcasting Corporation where he managed content and streaming media delivery systems for Canada's largest website.
When not helping customers with automating all the things, he enjoys traveling, cycling, and stopping his cat from clawing the furniture.
Seth Vargo is a solutions engineer at Opscode, the maker of Chef. Seth created and currently leads the #learnchef campaign–a program designed to interactively teach Chef to new users. A graduate of the Carnegie Mellon Information Systems program, Seth has been a developer and systems administrator for more than 12 years. He is a proponent of open source, and is the author of popular open source tools such as powify, bootstrap_forms, strainer, fauxhai, and many Chef community cookbooks. When he's not at home in Pittsburgh, Pennsylvania, Seth is traveling and evangelizing Chef at conferences, meetup groups, and open training courses.