Henning Wolf is CEO of it-agile GmbH in Hamburg, Germany. He studied computer science and worked in agile projects since the late nineties. He worked as developer, ScrumMaster, Product Owner and Coach in Scrum, eXtreme Programming and Kanban projects. He speaks on conferences and publishes about his experiences (in German). His last books were „Software entwickeln mit eXtreme Programming“, "Agile Softwareentwicklung", "Die Kraft von Scrum" und "Scrum verstehen und einsetzen".