The role of communication is a catalyst for the proper function of an organization. This paper focuses on libraries, where the communication is crucial for their success. In our opinion, libraries in Greece are suffering from the lack of communication and marketing strategy. Communication has many forms and manifestations. A key aspect of communication is body language, which has a dominant communication tool the neuro-linguistic programming (NLP). The body language is a system that expresses and transfers messages, thoughts and emotions. More and more organizations in the public sector and companies in the private sector base their success on the communication skills of their personnel. The NLP suggests several methods to obtain excellent relations in the workplace and to develop ideal communication. The NLP theory is mainly based on the development of standards (communication model) that guarantees the expected results. This research was conducted and analyzed in two parts, the qualitative and the quantitative. The findings mainly confirm the need for proper communication within libraries. In the qualitative research, the interviewees were aware of communication issues, although some gaps in that knowledge were observed. Even this slightly lack of knowledge, highlights the need for constant information through educational programs. This is particularly necessary for senior executives of libraries, who should attend relevant seminars and refresh their knowledge on communication related issues.Communication is crucial especially in the professional field. Nowadays, more and more organizations and libraries focus in communication among the staff and with the users. The communication contains a lot of aspects and performed in many different ways. An aspect of communication is body language. This is the most primitive way of communication and transfer of thoughts and emotions that a person has. Another communication tool of great importance is the talk.The Neuro-linguistic programming (NLP) is a set of techniques and methods that improve communication. Proposes and describes the development of proper communication in work in personal environment. It helps in identifying and interpreting many emotional situations that otherwise is unnoticed. The NLP states that success in the workplace and the achievement of objectives depends not only on the skills, experience and abilities. It depends also from the communication skills of a person and his tolerance. NLP the increase of the impact of a person has to other and helps the person to develop self-knowledge and techniques that will enable his to achieve his goals. The communication difficulties in the workplace hinder the evolution and development of a healthy organization and leads to conflicts between partners, unproductive relationships, secretiveness, lack of trust and negligence. The NLP deals with resolving these issues by broadening the horizons of thought, understanding of different perspectives and focusing on the positive side of things. This paper presents the ...