Mature readers draw on a complex web of previous experiences when interpreting written and visual texts. Yet very little is known about how preschool children, who cannot yet read, make connections between texts. This study explores how 13 4-year-old children made intertextual connections during shared reading with their mothers (seven children) and their preschool teachers (six children). The findings indicate that very young children actively draw on their knowledge of other texts, and their personal lived experiences, to reflect on the meanings they encounter in unfamiliar picture books. The functions served by the children's intertexts ranged from the simple pleasure of recognition to more sophisticated comparisons between texts in terms of theme and plot. The extent to which the adults were able to integrate the children's intertexts into the discussions varied. An awareness of the important role played by intertextuality in children's interpretations of texts may provide early childhood professionals with a framework within which to plan systematically for the language and literacy development of young children in their care.