He works as a freelancer for such subjects as business and travel, writing for such publications as Air International, Energy World, Glass International, History Today, Petroleum Review, Ryanair Magazine and Wizz Magazine.In 1995 Sedlák was an Alfred Friendly Press Fellow at The New York Times. From 1992 to 1993, following another fellowship at the Commission of the European Union, he was the information officer at the E.U. Delegation (Embassy) in Prague.