The aims of this report are, firstly, to review the activities of Commission 5 since the previous report and, secondly, to draw attention to other relevant activities. It is based mainly on contributions (shortened in some cases) from the chairmen of Working Groups and Task Groups, but other items of general interest have been included.

The report on the meetings of the Commission at the IAU General Assembly in Baltimore in August 1988 was published in Trans. IAU 20B, 109–118, while the membership is listed on page K10 and the IAU Style Manual is printed as Chapter 8 on pages Siii-Sxii and S1-S50. The proceedings of Joint Discussion No, 1 on New developments in documentation and data services for astronomers were reported in Highlights of Astronomy 8, 67–100, The proceedings of IAU Colloquium No. 110 on Library and information services in astronomy, which was held in Washington, DC, just before the General Assembly, were published by the U.S. Naval Observatory in 1989. The Newsletter of the Commission was issued in June 1988 and July 1989.