Biography: Vera Toepoel’s research focuses on online data collection. Topics include mobile surveys and the methodological issues associated with using human data to supplement or replace survey data (passive data collection, sensor data). She is the author of the book ‘Doing Surveys Online’ published by Sage (2015), the president of RC33 (Methods and Logistics) of the International Sociological Association. She has been the Chairwoman of the Dutch Platform for Survey Research, bringing together people working in market research, science, and government. She studied Leisure Sciences with a specialisation in Marketing. She was a consumer researcher at the Dutch Knowledge Center Tourism and a senior researcher at CentERdata while doing her PhD on the design of online questionnaires (2008).