The topic of this study was to determine the factors affecting the reading readiness of Grade R learners in selected preschools in Gauteng Province. The purpose of this study was to explore factors that affect the reading readiness of Grade R learners as understood by teachers and mothers. The aim of the study was to establish what factors affect the reading readiness of Grade R learners. The primary research question asked what factors Grade R teachers and mothers find affect reading readiness. The secondary research questions asked how Grade R teachers address these factors in the classroom; who the people involved in the learners’ reading readiness are; and how they contribute to reading readiness. This study employed a multiple case study approach. Data was collected in six preschools in Johannesburg through semi-structured, face-to-face interviews with five Grade R teachers and five mothers of Grade R learners. A focus group discussion with four Grade R teachers was also conducted. The main findings of the study were eight factors affecting the reading readiness of Grade R learners: the learner’s individual developmental level; the learner’s maturity; the learner’s desire to learn to read; the learner’s phonological awareness; the learner’s need for play and kinaesthetics; the learner’s parents’ contributions; the learner’s socioeconomic living conditions; and reading stories to the learner. The implication is that these findings may improve teaching practice and Grade R curriculum development. / Psychology of Education / M. Ed. (Psychology of Education)