Streszczenie
Since early 1990. the members of sociological team led by professor Wielisława Warzywoda-Kruszyńska have been gathering narrative and biographical interviews with individuals and families, marginalized due to their inter-generationally inherited poverty. The paper treats on biographical data application in sociological studies of poverty and social exclusion – recognized processes and phenomena, and their cognitive importance. Multifaceted analysis of neighbourhood of relegations, family life of the poor, collective and individual dimensions of pauperization, social roles, individual and collective identities are pursued on the basis of biographical data. The results of the biographical research provoke thoughts about the institutional intervention and its influence on the social world of poverty.