Task of 'Nationaal Onderzoek Persmedia' foundation is to collect data about reading habits of Dutch population, including information about criteria for media-selection. Presence ( amount of reading ) of illustrated magazines / radio- and tv-magazines / daily newspapers / watching advertisements on tv / reading 'consumentengids' / home-ownership / possession of photocamera / visiting theatre / movies / drinking alcohol / smoking habits / means of transportation / spending holidays how long, what country, means of transportation, overnight stay how / interest in leisure activities. Background variables: basic characteristics/ residence/ housing situation/ household characteristics/ occupation/employment/ education/ social class/ consumption of durables/ readership, mass media, and 'cultural' exposure