Research tells us that reading is correlated to academic achievement but how do we motivate students to read? How can schools build reading cultures? Through the case study of a government secondary school in Singapore, I examine how attention to the invisible network of resources that support reading can provide insight into students' resources for reading, both at home and in school. Additionally, I explain, through the mapping of the school library as a reading space, how a socio-spatial approach that maps the physical, social and affective spaces of the library can provide a framework for strategic and focused action to cultivate a school's reading culture.