This is an introductory text to a collection of selected papers from the VI International Workshop on Professional Retraining and Life-Long Learning using ICT: Person-oriented Approach (3L-Person 2021), held in Kherson, Ukraine, on the October 1, 2021. The volume presents the contributions to the workshops affiliated with the ICTERI 2021: the 17th International Conference on ICT in Education, Research, and Industrial Applications.