The main goal of the Learning circles in libraries project was to make it easier for adults to access useful online content, help them study effectively and improve their lifelong learning skills. The main activity aimed at achieving this goal was to implement in libraries the so called ‘learning circles’, understood as groups of people who meet regularly in the library to learn something together. People who participate in them use online courses available, free-of-charge, on the Internet, share their knowledge and experiences, and learn from each other, being supported by the learning circle’s facilitator. Facilitators don't need to have expert knowledge - such knowledge comes from courses and other online resources, as well as from the community of learners.Due to the COVID-19 pandemic, the development of which took place during the project implementation, an additional goal of the project was added: to prepare facilitators of learning circles to organize and run engaging online meetings. The project’s implementation consisted of 6 parts: 1) analysis of the state of adult education in the project partners’ countries, with particular emphasis on online learning; (2) development of educational materials - including database of available online courses (280 resources), training curriculum, a manual for facilitators, online course for people participating in learning circles, instructional videos, and a collection of good practices; (3) trainings of facilitators’ trainers (13 educators) and their pilot learning circles (all virtually);(4) project results dissemination including training of 89 librarians - learning circles facilitators (virtually);(5) pilot learning circles in libraries (32) attended by over 200 participants virtually and in person; (6) updating of educational resources taking into account experience from virtual learning circles. The idea of learning circles and the experience of libraries participating in the project were disseminated during online events, thanks to which the information and project resources reached over 1000 people from libraries in the countries participating in the project (Finland, Germany, Poland, Portugal, and Romania). The trainers developed various means of support and communication tools for librarians who plan to organize future learning circles, and are ready to support new groups of librarians interested in implementing learning circles in their libraries.