The purpose of this volume is to provide a learning resource about metadata for catalog librarians and students. Part I of the volume con tains introductory, theoretical material, and original research, and Part II contains instructive material.The point of view of the volume, overall, is that in library and information science there is an ongoing conver gence of cataloging and metadata, such that the community will bene fit from instructional material that demonstrates this convergence. Throughout the volume, readers will find metadata discussed alongside cataloging. The rationale for this is fundamental-resource description. Metadata, in one sense, are nothing new, and yet, in another sense, metadata schemes represent a very exciting forefront in resource de scription.