This volume serves as a comprehensive ISBN index for German books published between 1986 and 1987, specifically referencing the Spring Supplement of 1987. It is compiled by Verlag B. Verieinigung, a known entity in the German publishing industry, and provides a structured reference for locating specific titles within that period. The index is designed to be a crucial tool for librarians, booksellers, and researchers needing to navigate the German book market of the mid-1980s.

As a specialized index, its value lies in its direct utility for professionals within the book trade and academic research. The publication's purpose is to provide an authoritative and accurate listing, essential for cataloging and retrieval. Its reception would be measured by its accuracy and comprehensiveness as a reference tool for the specified period.