“Bibliographical analysis, involving patient collation and comparison of printed texts, and the identification of the distinctive ornaments with which printers enlivened otherwise blank spaces, flourish. They remain the bedrock on which, over the last thirty years or more, a ponderous superstructure of interpretation has been erected. Local and national pride have sustained enquiries: a specific town or state is shown to have been in the vanguard of printing and book production; their products exhibit superlative skills in the quality of paper and type-faces, layout, design and binding; the titles are marked by intellectual precociousness or boldness.”