Abstract: British children enter school younger than their European counterparts. Research suggests that this disadvantages boys who may be unready for formal literacy instruction.This longitudinal study explores the effect of age of entry to school on boys’ reading development, focussing on attitudes and beliefs. Data from 60 summer-born boys, divided into two cohorts, was collected on three occasions: before entry to Year One, end of Year One and end of Year Two. Comparisons were drawn between 31 boys with part-time nursery education before Year One, and 29 with full-time Reception class experience. This paper presents data collected at Time One. Employing both quantitative and qualitative methodologies the study explores how beliefs about and attitudes towards reading emerge in the context of these contrasting early years settings. Implications of the findings are considered in the context of policies and trends in age of entry to school.