Chapter 1	Aims of this bibliography	abstract full text
Chapter 2	Concept of happiness	abstract full text
Chapter 3	Collection and selection of publications	abstract full text
Chapter 4	Classification of publications	abstract full text
Chapter 5	Selection of reported results for inclusion in the findings archive	abstract full text
Chapter 6	Strengths and weaknesses of this bibliography	abstract full text

Text Ruut Veenhoven, June 2020. Revised version of ‘Part 1 Introduction’ in book ‘Bíbliography of Happiness‘ 1993, RISBO, Rotterdam, pp. 4-28.