Arjen Lentz

Arjen Lentz was born in Amsterdam, but now lives in Queensland Australia. Together with Harmony he has a beautiful daughter named Phoebe and a black cat named Figaro. Originally a C programmer, Arjen was employee #25 at MySQL AB (2001-2007), dealing with the MySQL Manual (2001-2004), global Community Relations (2004-2006), the MySQL Users Conference (2005-2006), teaching MySQL Training courses (2001-2007), and MySQL Support Engineering (2006-2007). After a brief break in 2007, Arjen founded Open Query (, which develops and provides its own MySQL and other open source training and consulting services in the Asia Pacific region and beyond, as well as open source business and community strategy advice.

High Performance MySQL High Performance MySQL
by Baron Schwartz, Peter Zaitsev, Vadim Tkachenko, Jeremy Zawodny, Arjen Lentz, Derek J. Balling
Second Edition June 2008

"This is one of the best database technology books I've read, and the best one on MySQL...this book is really a tour de force for understanding MySQL database technology. Go get a copy!"
--Sean P. Hull,

"High Performance MySQL is yet another stellar book from O'Reilly. The book is co-written by ex-Yahoo! employee Jeremy Zawodny. With a popular site like Yahoo!, one of the crucial elements of their backend is making sure the performance of the site remains high. MySQL is notorious for not having well-documented literature on the issues of reliability, scalability and performance. This book teaches many strategies and techniques that allow your MySQL-powered application to perform much smoother."
--Glen Stansberry, NETTUTS

"This is a good book that is well worth the cost. While it is not a newbie book, there is plenty here for novice and expert alike. I can pretty much guarantee that if you work with, or want to work with, MySQL, you will get some value from it."
--Lewis Cunningham, MySQL Database News