1. Introduction
Libraries can be considered the greatest scientific-cultural centers existing today
and can be traced back through the history of mankind across the world. From early
on the study of library history shows that the main objective of libraries was to provide
a place for collecting and storing human knowledge and to offer services to readers
using these structures. Initially, only certain classes of society (scientists and nobles)
had access to these libraries, but in time, this circle of library users widened together
with the growth of human thought and culture, so that today, anyone can be regarded
as a potential (public) library user [1].