Indonesia is committed to creating an inclusive education system. Kindergartens have a key role to play in this endeavour. However, there are specific challenges that need to be addressed if this potential is to be fulfilled. It has been suggested that the use of keyword signs within Sign Supported Big Books (SSBB) as part of everyday story time activities might offer one way to begin to address some of these challenges. This research used a questionnaire method to evaluate the uptake and impact of SSBBs from 214 kindergartens across Indonesia. Analysis of teachers' responses revealed the inclusive affordances of the approach. For the majority of teachers: the books were in regular use in their classrooms, teachers and children enjoyed using them, SSBBs made learning fun, the approach impacted positively on teachers' classroom practice and they reported that it had benefits for children, including those with special educational needs. These results indicate that SSBBs can make a positive contribution towards creating an inclusive kindergarten pedagogy. Suggestions for further developments of the SSBB approach and future research are discussed.