The aim of this article is to analyze the significance of interior in a modern communication. The significance of interior is described and modified in mutual interrelation of interior of educational establishment. The studies of problems connected with the influence of man’s spatial environment has lead to the necessity to create questionnaires, the aim of which is to clarify the opinion of pupils, students, and teachers in a matter of understanding how the spatial environment is influencing the educational processes and mutual cooperation as well. XXI century can be characterized by substantial changes in all directions of public life – in an economy, policy, culture, technology and in ecology. Humans have reached the maximum heights on application of synthetic materials in an interior. And just now is a time to return closer to the nature. Such factors of communicational space as functional layout, design, colors, illumination, and also space microclimate are influencing the mutual interrelation of people. For this reason intellectual values are gradually occupying the everyday life of man, including the organization and aesthetics of external spatial environment. The thousands of years old historical development testifies about the fact that every spatial formation has its own characteristic language. Therefore seems it goes without saying that from all architectural formations exactly public building (interior of educational establishment) must possess the greatest emotional charge. This is explainable by the special nature of the usage of public buildings – they differ from other ones by visiting frequency and by functionality. Educational establishment is a public space with social aim – to teach, to study, to interchange knowledge, to communicate mutually. Educational environment influences in a great extent educational processes and this means that space as well as any other spatial formation has its own information. Accepting this point of view it must be recognized that external architectonically organized environment, where our lives are going, is a spring of endless signals, which person perceives as a self explanatory thing, quite often even regardless of its own will. The uncontrolled influence of architecture – interior and exterior, on the psyche of man is not usually noticed. The spatial environment is a mirror image of public, which reflects clearly the maturity, priorities, principles, experience, and ability to plan, to foresee, to dare and to do. In Latvia, similarly to any place in the world, both are actual, the maintenance of the historical values and the forming of new understanding of spatial environment. Looking back on the past with comprehending still is a hope that the future public space will become friendlier to the human and environment