Well-educated staff with ongoing access to professional development are a core element in high-quality early-childhood education and care (ECEC). Mentoring provides a tool for holistic professional learning that takes into consideration the different developmental needs of the staff. At present, mentoring is a widely used staff-support method in education, including ECEC. This article offers an introduction to the basic mentoring theories, although a simplified categorization of mentoring models is difficult. The focus is on mentoring the working communities, the importance of reflection in mentoring, and e-mentoring. Two examples of different mentoring models in ECEC – utilizing group, peer, and e-mentoring – are presented.