David Strauss is a co-founder of Four Kitchen Studios, a Drupal consulting firm. He is an author of multiple core database patches, Tracker 2, DNA (the denormalization API), and PressFlow Preempt and is a general adviser on database architecture. He began working with Drupal in November 2006 and has used it for most personal and professional projects since. He is also involved with projects at the Wikimedia Foundation, Creative Commons, and the Internet Archive.