The article presents selected views of Hans Tietgens, one of the most important representative of adult education research and practice in Germany in the second half of the 20th century. In Tietgens' conception the constitutive feature of adult education is a search. The adults in a disorientation situation are searching for a possibility of organized learning in order to recover the orientation and certainty. The planning of education offers is a kind of searching too. There is the point to meet individual needs and social demands. The people searching for a suitable offer can go wrong so they need help and the correct planning of offers should make easier the searching and finding process. The participants oriented adult education and professionalism make possible the each other finding of the searching people and an offer. According to Hans Tietgens adult education offer should be addressed to all social groups. He underlined the importance of using biographic research in adult education that helps to understand individual cases what is the basis of adult education. Hans Tietgens died in Mai 2009, he was a researcher and practitioner whose work has had a great influence on the development of adult education theory and practice in Germany.
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