Sander Schoneville is a Technical Director at GroupDeal, a Dutch daily deals site based on Magento. His has his background set in media psychology and business informatics. He combines both fields to create effective websites.
He has worked with Magento since its early releases in 2008 and has written a Dutch book about Magento.
Together with co-writer Robbert Ravensbergen, he's running an e-commerce blog at http://www.boostingecommerce.com.