This publication is designed as a guide for libraries that have elected to undertake a formal study of preservation needs in preparation for planning and implementing programs to meet those needs. The manual is divided into four sections. The first section (Chapters 1-2) provides an overview and orients the reader to the planning process. The next section (Chapters 3-4) covers the start-up of the preservation planning process and the tasks to be accomplished during Phase I of the study. The third section (Chapters 5-10) discusses the more detailed investigations to be carried out during Phase II of the study and describes in-depth investigation of needs in the areas of environmental control, physical condition of the collections, organization of operation preservation units, disaster preparedness, staff and user education, and fundraising for preservation. In libraries where a more limited approach is preferred, the program can be adapted by selecting from among these areas. The last section (Chapter 11) focuses on Phase III of the study, the preparation of the preservation plan. The manual also brings together a variety of checklists, outlines, and samples that help to guide investigations and analysis. Association for Research Libraries members who have used the publication in carrying out their own preservation planning are listed in the front of the publication. (Contains 25 references.) (KRN)