The project created an international consortium and partnership of workplaces focused on early childhood education and care in order to promote and ensure real multicultural and inclusive pre-school education at all relevant levels based on clear and adhered principles. The partner participants in the project were Trnava University (Slovakia), University of Sv. Cyril and Methodius Veliko Tarnovo (Bulgaria), Sopron University (Hungary), where representatives and authorities of workplaces (departments), which at the national and international level have long and intensively devoted to early and pre-school education and have a recognizable influence on this sector. At the same time, targeted kindergartens from all the mentioned countries were also involved in the project: from Slovakia there were two kindergartens, from Bulgaria and Hungary one kindergarten each. They were kindergartens that have excellent experience in the implementation of multicultural and inclusive education, quality staff and high motivation for further work in the field, to develop their approaches, to cooperate with each other and to share the results of good practice. A special participant in the project was a non-European university institution: Univeristas Negeri Semarang in Indonesia and its department of pre-school education. Within the central theme of the project, it was a partner workplace, which on the one hand represented completely different cultural conditions, those that have long and actively stood on the multicultural and inclusive foundations of Indonesian multicultural society, be it ethnicity, social status or religiosity. The partnership was based on a long-term cooperation in this area. The basic goal of the project was to ensure that pre-school education incorporates the principles of inclusive education as expressed in the national curricular documents of pre-school education. The aim was for ECEC institutions to understand together the ideas and principles of inclusive education, to be able to apply the open education model to all, to be able to create a school curriculum that integrates diversity and inclusion into everyday work. All project activities led to the creation and management of the main project outputs. The intellectual outputs include a comprehensive Methodological Handbook for Cultural and Social Diversity in Kindergartens, which was prepared in four languages ​​(Slovak, Hungarian, Bulgarian, English) and elaborated in detail the principles of education capable of ensuring inclusion and targeted work with diversity (children and their environment). It was about the application of these principles in creating the school curriculum of kindergartens, for creating an inclusive educational environment and planning specific educational activities for the needs of heterogeneous groups of children, as well as for creating children's sense of cultural diversity. The handbook has a balanced theoretical and applied character, while its main addressees are employees of ECEC institutions.The second key outcome were the policy recommendations to put forward concrete proposals and changes that need to be made at the political and national level for a real and widespread application of inclusive pre-school education. It is an analytically argued proposal of specific legislative measures for the real provision of inclusive education, the provision of a cohesive national curricular policy, and international analyzes of the implementation of inclusive education policies in relation to the national policies of the project participants.The third key output were the national workshops, which applied intellectual outputs in practice through direct multiplication with kindergarten teachers, who can transfer these outputs to the work of their institutions and help disseminate results through their initiatives and application of activities. Unfortunately, the planned workshops were not fully implemented in person, in two countries (Hungary and Slovakia) it was necessary to implement workshops online due to the pandemic situation. The participants of the workshops expressed their satisfaction with the created material and appreciated the possibility of an accessible website, which should also be used for further sharing of good practice within the inclusion in kindergartens.