Maps of science provide visualizations of scientific knowledge domains by quantitatively grouping elements from scientific papers. In evaluative bibliometric studies these quantitative maps have proven a useful tool. Representation schemes such as mental maps or cognitive maps provide a tool to structure qualitative reasoning about, for instance, strategies, learning and politics. A combination of bibliometric maps with these qualitative structures may provide new ways for attacking science-policy related problems using bibliometric data. A design is presented on how to create, visualize and use the correspondence between elements in both types of maps.