David ROIZEN has worked in communications for 25 years, both in the public sector (ministries and local authorities) and in the private sector (advertising and communications agencies). He is now a teacher, trainer and consultant. He works with students, elected representatives, local government officials, private leaders and public figures in all these areas. Sports columnist for RCJ radio, he is also an associated expert with the Fondation Jean Jaurès, for which he published a paper on the phenomenon of ‘sportwashing’.