Risk communication is one of the measures that should be implemented to increase the awareness and preparedness of the general public in order to attain disaster risk reduction. Among the various forms that can be used in communication campaigns, visualizations are appropriate to disseminate information about spatial phenomena such as natural hazards. In order to be effective, communication campaigns should be designed according to the specificities of the targeted audience. Risk and disaster managers are seen as a source of information about the latter as their tasks put them in direct contact with the general public and they need to communicate risks. Hence it is assumed that investigating their perception on the informative needs of the general public can help to design effective visual risk communication campaigns and to evaluate them.