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 an 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.