Drupal book spotted in Berlin Pieter Baert spotted the German Drupal book in a store in Berlin, Germany. He sent me the photo below. Thanks! © Pieter Baert — Dries Buytaert Dries Buytaert is a Boston-based Open Source advocate and technology executive. More than 10,000 people are subscribed to his blog. Sign up to have new posts emailed to you or subscribe using RSS.