Book excerpt: "This book offers a comprehensive guide to descriptive bibliography--the activity of describing books as physical objects. The function of descriptive bibliography is to provide detailed historical accounts of the varied material forms in which texts have been transmitted and to show the relationships among those examples that claim to carry texts of the same work. The first part of this book contains five essays on general topics: an introduction to the field and its history; its relation to library cataloguing; the concept of ideal copy; the meanings of edition, impression, issue, and state; and tolerances in reporting details. The second part covers more specific subjects: transcription and collation; format; paper; typography and layout; typesetting and presswork; non-letterpress material; publishers' bindings, endpapers, and jackets; and overall arrangement. At the end is an appendix containing a sample description with detailed commentary, followed by a record of the literature of descriptive bibliography"--