For almost 30 years, Lison has been working as Director of the Public Library System of Bremen, one of the largest public library systems in Germany. She is a highly-educated librarian with university degrees in Slavonic studies, history and educational theory.
Besides her duties in Bremen library, Lison actively advocates for libraries on national and international levels. She has held several offices in various library-related associations, having served as President of the German Library Association, dbv, and President of Bibliothek Information Deutschland, the national umbrella organization of the German library and information associations.
Lison has also held leadership positions in the European Bureau for Libraries, Archives and Documentation Associations (EBLIDA), including Executive Committee member and Vice-President.
She is an expert on all aspects of library management, particularly innovation, human resource management, customer orientation and change management.
She has been a member of IFLA´s Governing Board, held the position of Treasurer and IFLA President-elect. Her term as IFLA President is from August 2021 to August 2023.