This directory serves as a comprehensive reference for locating and understanding the vast network of libraries across the United States and Canada. It provides detailed information on library collections, services, and operational data, enabling users to compare institutions and identify specialized resources. The work aims to be the most accurate and in-depth resource available for library professionals and researchers.

This reference work is presented as the leading directory for library information, offering unparalleled range, depth, and accuracy. Its utility lies in providing quick access to specific details such as special collections, interlibrary loan capabilities, and comparative data on services and expenditures. The directory is designed to be an indispensable tool for professionals and researchers needing to navigate the library landscape.