His research focuses on the history of natural sciences and travel, as well as biographical research, including the Biographical Dictionary of the Czech Lands project. He also teaches at Charles University and Jan Evangelista Purkyně University in Ústí nad Labem.
He has published more than twenty books, including Who Was It Named After…?, How Alzheimer Forgot His Nobel Prize, From Charles Bridge to Gottwaldov: Personalities in the Names of Cities and Places, and Regional Geography of Central Europe.
