The invention of the public – The emergence of opinion and market research in The Netherlands. Dutch. De uitvinding van het publiek- De opkomst van het opinie- en markt-onderzoek in Nederland (Amsterdam: Cramwinckel, 215 p., illustr. With sources, notes, register. ISBN 90-71894-57-6).

Part of a historical research project on the origins of Dutch psychology and its applications, for the Netherlands Foundation for Purely Scientific Research ZWO/ NWO. (Another part dealt with testing, resulting in a dissertation by Eric Haas).

Chapters about the social and intellectual backgrounds of early (social) psychology and advertising, market and opinion research, labour and organization studies (in the wake of the Marshall Aid).

Carried out at the History & Foundations section of the Heymans Psychological Institute at the University of Groningen.

On some related international developments, see the author’s chapter in J. Jansz & P. van Drunen, A social history of psychology (Oxford: Blackwell 2004).