How does one conduct a collection assessment? It's a very timely question and one that is answered most thoroughly via this guide from the Northwestern University Library. Clicking on the What is in this Guide? link will help interested parties navigate the swath of material available here on topics like interdisciplinary analysis, qualitative methods, and how to interpret library data. As the materials are designed for library professionals and others in the information sciences, they may require a certain level of technical background in these areas. The materials are divided into eight sections, including Interdisciplinary Analysis, Comparative Analysis, and Cost Projections & Publishing Market. The guides within each area are spot-on and provide the necessary armature for those working in these fields.