With the scientific anthology Professional Developmental Mentoring for Individual and Collective Development, the Network for Professional Developmental Mentoring for Newly Qualified Teachers in Kindergarten, Primary and Secondary Education marks its more than 20-year history. Since 2003, the network's former and current participants and colleagues have published countless scientific articles, doctoral degrees, monographs and anthologies that have been of great importance for the development of the profession mentoring field in the entire education sector from kindergarten to higher education. The anthology presents key concepts related to mentoring and the transition from teacher education to become a professional teacher in kindergartens and schools. An insight is given into the historical development of follow-up and professional developmental mentoring for newly qualified teachers in Norway. Empirical research on mentoring programmes shows examples of further development of the programmes, and the knowledge base for the professional development mentoring field is challenged to contribute to discussion and further research. The anthology also presents a variety of possibilities, perspectives and theoretical approaches within the professional field related to mentoring in teacher education, professional development mentoring for newly graduates and the establishment and development of professional learning communities in kindergartens and schools. The anthology is mainly aimed at the teaching professions. mentors and mentoring educators but are also relevant for others who are interested in learning dialogues and the development of professional learning communities.