Worldwide, toy libraries are regarded as a non-centre-based early childhood education programme. In South Africa the majority of young children live in poverty and do not have access to early learning opportunities and play materials before entering formal schooling. This study investigated how toy libraries provide play-based learning opportunities for young children. Seven toy library sites located in five South African provinces (Gauteng, Mpumalanga, Free State, KwaZulu-Natal and North West) participated in the study. The participants consisted of toy librarians, managers and parents. The toy librarians were selected purposively, applying the criterion that play-based early learning sessions were provided to children younger than six years. The research methodology employed was qualitative, and an interpretivist paradigm informed the multiple case study design. The conceptual framework was based on learning and systems theories informing how young children learn. The toy library operations and play-based early learning session characteristics inform the framework of quality standards for toy libraries. The data production strategies included focus group discussions of photographs, document analysis and observations of play sessions. The group discussion and observation transcriptions, documentation and photographs were analysed by means of coding. Three themes, namely young children and learning, toy library operations and play-based early learning, and nine sub-themes emerged that include academic learning, 21st century skills, administration, play materials, services, challenges, developmentally appropriate practice by toy librarians, play-based learning pedagogy indicators and characteristics of play-based learning. The findings indicate that toy libraries provide access to play-based early learning sessions to young children. However, a variety of developmentally and culturally as well as age-appropriate play materials and play-based early learning sessions that include a variety of play opportunities are required. In addition, the framework of quality standards for toy libraries was enhanced as a result of the study. This framework provides guidance on how to operate a toy library which includes, apart from lending toys, play-based early learning sessions in its services. / Thesis (PhD)--University of Pretoria, 2017. / Early Childhood Education / PhD / Unrestricted