As an irreplaceable aspect of human interpersonal relationships and social life, communication is a key to numerous roles influencing our work, decisions, and behaviour. Engaging in projects with preschool children presents a unique communication challenge for all participants while offering numerous benefits. In addition to a theoretical overview, this paper focuses on the importance of understanding various forms of communication within projects, especially in the context of Early Childhood Education and Care (ECEC). The central part of this paper is dedicated to the communication among educators and project collaborators. Furthermore, it explores the significance of reading in the development of various skills in early childhood and highlights relevant projects and programs supporting literacy in the Republic of Croatia. This research paper explores the role of communication in the implementation of readingbased projects in preschools. The research hypothesis refers to differences in respondents' assessments based on the criterion of the length of acquired work experience. It is questioned through defined research questions related to coordinator satisfaction, communication with other participants and the child population, as well as communication methods and their impact on the purposes of the project. Answers were collected through an anonymous questionnaire for the coordinators who were part of the project for promoting reading in ECEC institutions.