Poor learner performance in South African schools raises concerns related to lack of commitment and accountability from school leaders and teachers with no common vision to promote a culture of high learner performance. This paper provides a literature overview of research available on the impact of professional learning communities (PLC) on effective teaching and practices to promote higher levels of learning amongst students; the nature of PLCs; their essential characteristics, developmental stages and challenges; and an assessment of the benefits of PLC in schools and the challenges of PLC from other researchers' observations. PLCs are necessary to encourage collaborative teamwork on essential outcomes and intervention activities in learning. Finally, I conclude by exploring how South African schools can benefit from the practices of professional learning communities which endeavour to improve teaching practices and poor learner achievement.