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• Finnish National Agency for Education (2022). National core curriculum for early childhood education and care. Publications of the Ministry of Education and Culture. 
• Historical photographs: University of Jyväskylä / Open Science Centre, Jyväskylä University Museum.
• James, A., Jenks, C. & Prout, A. (1998). Theorizing childhood. Oxford: Polity Press. 
• Karila, K. (2016). ECEC Pedagogy in the Nordic Countries – Its Roots and Current Challenges. In Pedagogy in ECEC: Nordic Challenges and Solutions. Ministry of Education and Culture (edit). Seminar Report, Helsinki Finland. 
• Melhuish, E., Ereky-Stevens, K., Petrogiannis, K., Ariescu, A., Penderi, E., Rentzou, K. & Broekhuisen, M. (2015). A review of research on the effects of early childhood education and care (ECEC) on child development. CARE. Curriculum Quality Analysis and Impact Review of European Early Childhood Education and Care (ECEC). 
• Ministry of Education and Culture (2021). Programme for Developing Education and Training Provision and Programmes in Early Childhood Education and Care 2021–2030. Ministry of Education and Culture. 
• National strategy for children: report of the parliamentary committee. 2021:8. 
• OECD (2021), Starting Strong VI: Supporting Meaningful Interactions in Early Childhood Education and Care. Starting Strong. OECD Publishing, Paris. 
• Pihlainen, K., Reunamo, J. & Kärnä, E. (2019). Lapset varhaiskasvatuksen arvioijina – Lasten mukavina pitämät asiat päiväkodissa ja perhepäivähoidossa. Journal of Early Childhood Education Research, 8 (1), 121–142. 
• THL (2020). Varhaiskasvatus 2019. Tilastoraportti 33/2020. THL. 

More information:

• Lämsä, T. (2017). Näkyvä lapsuus: lapsuuskuva havainnointipäiväkirjassa ja television mainoskuvissa (väitöskirja). (2017). Jyväskylä studies in education, psychology and social research 588. Jyväskylä: Jyväskylän yliopisto. Doctoral thesis.