Digitalization in the public sector represents a crucial phase of modernization in services and administrative processes, enabling improvements in efficiency and accessibility. This paper analyzes the digitalization of office operations with a focus on e-services, covering historical development, basic concepts and definitions, and the role of information technology and digital tools in the public sector. Historical development of digitalization illustrates how technological innovations have facilitated the transition from paper-based to digital systems, transforming administrative processes within public institutions. Digitalization in the public sector encompasses key concepts and the benefits of e-services, such as enhanced speed and efficiency of services via the internet, while also addressing the challenges associated with their implementation. Overview of digitalization in office operations highlights the importance of information technology and digital tools in modernizing office processes, supported by examples of successful implementations. E-services in the public sector examines advantages such as resource savings and improved user experience, alongside challenges related to their deployment. Strategies for successful digitalization include recommendations for implementation, change management, and employee training. Effective planning and management are essential for overcoming technical, legal, and organizational barriers and for achieving the full benefits of digital solutions. In conclusion, digitalization offers significant advantages but requires careful management to achieve long-term modernization goals.