This is the opinion of the Spanish analysts. Among the evaluation criteria there is quality of the uploaded documents, the weight of scientific publications and even the number of inbound links - anything that can be useful to students during their studies. By the way, the requests for usage come from all over the world.And in the ranking of libraries in Central and Eastern Europe the library of the Belarusian State University took the second place. Such a world ranking is published once in 12 years.