- Literature and history of German-speaking refugees
- Autobiographies and memoirs
- The Kindertransport
- Issues of translation
- German-Jewish literature and culture
- Women's writing.
Dr Hammel is Committee Member of the Research Centre for German and Austrian Exile Studies, IGRS, University of London; member of the Editorial Board of the Yearbook of the Centre for German and Austrian Exile Studies (Rodopi); Co-director of the AHRC Network 'Holocaust Writing and Translation'; holder of a British Academy Small Grant to facilitate research on the Kindertransport.