This document discusses learning communities and professional learning communities (PLCs) in educational settings. It provides definitions and explanations of learning communities as groups that share interests and goals of learning. PLCs are described as groups of educators united in their commitment to student learning, who collaborate and make decisions together. Steps for schools to become effective PLCs include determining readiness, using external facilitators, identifying barriers and boosters, and starting with a focus on learning. The role of the school librarian in supporting PLCs includes developing relationships with teachers, communicating expectations, and empowering collaboration.