The book "Children in the Flexible School Entry Phase" by Katrin Liebers offers a comprehensive analysis of the crucial early years in children's school lives. It highlights the importance of the early school years for later educational success and addresses the challenges that children must overcome during this phase. Through empirical studies and current research findings, it demonstrates how essential targeted support in primary school is to meet the needs of all students, regardless of their social background. The work is aimed at educators and anyone involved in the development of children in a school context. It provides valuable insights and practical approaches to support children in the flexible school entry phase and helps lay the foundation for a successful educational journey.