The review begins with a study of several analyses of statistics relating to interlibrary loan. The subjective nature of some of these is stressed and the danger of using statistical data in isolation is highlighted. Statistical evidence is also brought into the discussion about the conflict between interlending and preservation which centres on the difference between the book and the text. Whilst two authors take a rather conservative approach, the third looks on the problem with a more liberal attitude. Although the intrinsic safety of the materials involved is a partial barrier to interlending in developing countries, writers from both Africa and Latin America emphasize the major obstacles to advancing ILL are professional attitudes and jealousies. The proceedings of a seminar in India are reported in which a number of participants put forward possible interlending models for their country. The deliberations in Australia also centre round the alternative models available, and arguments over the costs involved persist leading to some novel arguments about making ILL a free service. The development of interlending in Illinois is examined in some detail. The impact of interlending on acquisitions policies is discussed in two papers which show that interlending is still a backup for low use material when viewed in this context. The review closes with a discussion of the future particularly in terms of money and resources which are likely to become more and more limited. The demise of the US plan for a National Periodicals Center is used to show that money and power are major elements in deciding the fate of interlending schemes.