The report presents the results of bibliographic research expedition with student participation „Malko Tarnovo 2015 “. The study aims to verify the completeness of the Bulgarian Retrospective Bibliography through field trips to libraries, community centres and church book collections. There have been certain types of national literature, which for one or another reason have remained outside the Bulgarian bibliography. The report describes the high efficiency of teaching approaches in involving students in real projects along 3.5. Social Communications. Book Science, Library Science, Bibliography science field.