Since publication of the previous (fourth) edition of this handbook by UNESCO in 1978, drastic technological progress and very important changes in the political-economic sphere have taken place, with great impact on library work. The international exchange of publications continues to be an important mode of collection building and is practiced by almost all major libraries. The 5th edition of the Handbook addresses these changes in all three parts: Practices (sources of documents, organization and methods), History and Current Examples (e.g. international book exchange: has it any future in the electronic age?) and the Directory (list of exchange centres, selected bibliography).

Repositories for low use books have long existed for the larger cultural institutions across the globe. Libraries have long been strong developers of off-site storage. This need has evolved for libraries because of their continuous collection of print materials as a record of the intellectual and cultural output of different cultures. Libraries have had this role described neatly and executed as a clear professional role. This new book will primarily examine two aspects of this role: Firstly, the organisational and technological responses to this evolving role will be explored and secondly, the wide breadth of strategic responses to challenges of 'digital' will be detailed. In this authors to this edited volume will describe their work for libraries but increasingly for Galleries, Archives and Museums. The papers are drawn from Europe, United Kingdom, the United States and Australasia. The organisational models discussed in the book provide clear illustration of imaginative responses to the plight of the individual institutional library. New organisational models are shaping the way in which business can be done in times of change. The pressures today on all cultural institutions are similar and so there is a new convergence of similar need and similar solutions. This book is an acknowledgment that there are a wide variety of strategic, organisational and technological responses to the retention of cultural objects whether they be books, art, records or other cultural objects. It is illustrative of the power of good lateral thinking and planning by professionals, of the power of international networks and of convergence in response to need. The book will be an edited with a future perspective by Pentti Vattulainen and Steve O'Connor who have had significant experience in this area internationally.