The IBI Executive Council met for 57 ordinary sessions and 4 extraordinary sessions. The series consists of an incomplete set of files on the sessions, containing the Council's decision and reports on the programme activities and finances of the Organization. The series starts at the 18th Session. Information on prior sessions can be found in the reference documents of the office of the Director-General of the IBI (series IBI/5/1/1).

Series consists of correspondence exchanged between the Department and member states and different organizations.

Series consists of different working files on various aspects of the department's work. Documents include mission reports, correspondence, project documents, plans, budgets and bills.

Series contains documents on conferences organized by the Arab Region Department.

The Reflection Committee was established by a decision of the IBI Executive Council during its 54th session in April 1986. The Committee's purpose was to evaluate the present situation of the Organization and to reflect on future orientations and prospects. The Committee was composed of former Presidents of the governing bodies of the IBI - the General Assembly or the Executive Council. The series contains correspondence and records of the meeting of the Committee.

Les correspondances du comité de liquidation concernent avant tout les modalités de règlement financier des employés licenciés et du matériel de l'IBI. Une part importante de la correspondance est faite avec le gouvernement italien d'une part, et l'UNESCO d'autre part. Les correspondances avec l'UNESCO concernent les modalités de versement des archives de l'IBI à l'UNESCO. Les correspondances avec les organisations internationales et les autres pays sont essentiellement des courriers de demande d'information sur la publication de l'IBI AGORA, les conférences et programmes en cours de l'IBI et les notifications de liquidation de l'organisation par Dino Valenza.

Subseries consists of outgoing mail as registered by the Secretariat of the Director General. The series is incomplete. Files prior to 1985 are missing except for one dating from 1983. There are small gaps in files from the beginning of 1985; however, files from that point onwards to 1988 are more complete.

Series contains documents related to the various aspects of the work of the Arab Region Department.

The General Assembly met for 13 ordinary sessions and 6 extraordinary sessions. The documents include information on: decisions made at each session; financial reports; and, reports on the activities and budget of the Organization. Records from the 8th session of the General Assembly are missing from the series.

The Committee for the Revision of the IBI Convention (REVCO) was an ad hoc committee of the IBI General Assembly. The Committee was convoked when a new revision of the Convention was being discussed. The subseries in particular contains examples of possible revisions to the Convention and to the internal regulations of the Organization since its creation. The subseries consists only of working documents from the Committee’s work in the 1980s.