Dan Bishop is a systems administrator living and working in York, UK. He has extensive experience managing Ubuntu servers in personal as well as professional contexts, ranging from home office to enterprise. Apart from providing consultancy services to independent clients, he has forged a career in some of the top universities in the UK. Currently, he works at the University of York, developing a range of services that run on Ubuntu servers. In his spare time, Dan loves to travel the world, and he regularly volunteers as a special constable with the police.

James A. Langbridge does not like talking about himself in the third person, but he will try anyway. James was born in Singapore, and he followed his parents to several countries before settling down in Nantes, France, where he lives with his partner and their two children.

James is an author and embedded systems consultant. He has worked for more than 15 years on industrial, military, mobile telephony, and aviation security systems. He works primarily on low-level development, creating bootloaders or optimizing routines in assembly and making the most of small processors. When not on contract, James trains engineers to work with embedded systems and Linux. He enjoys making new gizmos, much to the dismay of his partner.

James wrote his first computer program at the age of six, and he has never stopped tinkering ever since. He began by using Apple IIs, ZX80s, and ZX81s, moved on to BBC Micros and the Amiga, and finally had no other option but to use PCs. He has been using Linux almost exclusively since 1995 and has no intention of changing. He has been using Ubuntu since 2006 as well as other flavors.