The thesis discusses the importance of documenting educational work in the earlychildhood and preschool educational institutions. The theoretical part discusses the documentation, the prescribed documentation, and shows the legally prescribed way of documentation of educational work through several annexes. The third chapter explains the fundamental values of the Step-by-Step concept, which presents the basis for comprehensive and systematic documentation of educational work. Furthermore, the relevant attitudes on documentation of recent authors are represented, the ways of monitoring and recording, the method of collecting documentation, forms, and functions of documentation. This chapter lists the attachments of documentation of children's drawings, anecdotal notes, transcripts, individual plans, game protocol and temperament assessment from children's development folders. The empirical research presents the results obtained through the survey questionnaire, which investigated the opinion of educators on the well-being of systematic and comprehensive documentation of educational work in the institutions of early and pre-school education and Education, and the benefits it has concerning all participants of the process. The research found that educators hold a positive opinion of the monitoring and documentation of educational work. Moreover, most educators use different forms of monitoring and documentation of educational work and positively evaluate their knowledge and experience of monitoring and documentation of educational work. Systematic and comprehensive documentation reflects key curricular implications: individuality, open, holistic and integrated approach, and developmental appropriateness.