“…Lee & Yeo, 2014) which stated that the application of the QR Code in learning makes it easy for teachers to adjust to class needs. QR Code allows users to embed various types of information (Kusumaningtyas & Hakim, 2020), such as text, images, videos, links about teaching materials, which can also facilitate learning inside and outside the classroom (Mowafi & Abumuhfouz, 2021;Pérez-Sanagustín et al, 2016). This QR Code-based book is also a novelty in the application of learning in early childhood education institutions, especially in ABA Surabaya Kindergarten, so that in practice children are interested and enthusiastic about the products being developed.…”