ABSTRACT
None of the main parliamentary functions could properly take place without being supported by adequate knowledge and information resources. This is a prerequisite for all modern parliaments but is particularly relevant today. This chapter discusses the structure and functions of Parliamentary Research Services (PRSs). It provides a brief analysis of the historical evolution of these services and outlines the main organizational solutions adopted by parliamentary administrations to carry out these activities. Looking back on the history of PRSs, it is useful to understand some of the characteristics that still mark the organization and work of these structures. The first administrative units dedicated to meeting the information needs of modern legislative assemblies were parliamentary libraries. The analysis of the status of PRSs within parliamentary administrations demonstrates a variety of different organizational solutions. Digitization processes are among the most significant factors that are currently transforming the work of PRSs.
