The extent to which children's reading experiences influence their writing production is not well understood. It is imperative that the connections between these literacy practices are elucidated in order to inform the development of stimulating curricula and to support children's development. This paper presents new data and key findings from a project investigating relationships between children's free choice reading and volitional writing in Key Stage 2 (9-10 years). The data were collected in two primary schools in northern England, using mixed methods. Quantitative data were collected using an online reading survey taken by 170 children, and qualitative data were provided through independent writing journals maintained by 38 participants. Through analysis of the data using a multiliteracies approach, we demonstrate that the writing that children choose to do is influenced by the texts they encounter as readers in terms of content, text type and linguistic style. The child readers in this project encountered texts in different media and created texts in a range of genres. By examining a sample of children's written texts from the data set, we show that children's interactions and transactions with texts as readers and writers are complex and multiple. Children creatively work across media, and in doing so the boundaries of traditional text genres and styles are redeveloped and redesigned. These findings highlight the importance of providing children with opportunities to freely choose and create texts and recognising the wide variety of text experiences that children bring to their classroom learning.