The final product of the international project "All Together for a Global Celebration" - implemented within the school year 2024-2025- brought a lot of benefits to both the students and their teachers. To begin with, it encouraged active engagement, with the Greek and Romanian learners showing higher motivation and self-esteem levels and a strong sense of ownership over their work. The project also fostered authentic international collaboration, as the project participants from diverse cultural backgrounds and age groups had an opportunity to create something valuable together, which enhanced their intercultural communication and respect. In the process, the primary and lower secondary pupils developed their digital and creative skills through the use of modern technology. Their efforts were recognized and celebrated within their school communities, giving them a deep sense of pride and accomplishment. As well as these, the resulting digital book now stands as a reusable educational resource - accessible online and ready to inspire future projects.