Last updated: 11/07/2017 Holger Kraemer and Laurent Gerniers Holger Kraemer is director of business development at vjoon and Laurent Gerniers is marketing director at Twixl media. Articles by Holger Kraemer and Laurent Gerniers Q&A Developments in tablet & mobile publishing – Q&A By Holger Kraemer and Laurent Gerniers | 12/07/2017