Portait image Henry Sauermann (IMAGE) ESMT Berlin Caption Author Henry Sauermann Credit ESMT Berlin Usage Restrictions Usage allowed only related to media coverage around the book "How and when to involve crowds in scientific research" License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.