An oldie but a goodie, Redesigning Library Services: A Manifesto, by Michael K. Buckland.
From the foreword:
\"There is knowledge and information in this book that is of immediate use to librarians, administrators of libraries of all kinds, university administrators, faculty, boards of trustees, and all others interested in the future of library service. It is in this utility, and in the fact that this book is pitched in the medium term, that its strengths and value can be found.
One of the most telling points made by the author is that, like it or not, libraries will have to deal with the provision of access to electronic documents.