An annual, Non Solus, no. Primarily English, Western European languages, and medieval Latin, but there are no restrictions. Frequently, the emphasis is not on subject matter per se, but on primary sources and examples of kinds of material, such as emblem books, incunabula, and fine printing. In the case of the Shakespeare and Proust collections, only rare items are acquired. In many cases, however, subject matter, regardless of date of publication, price, or rarity, is the important factor.
Major emphasis is on acquiring primary, usually printed, materials.
When this is impossible, facsimiles, microforms, and other types of reproductions are selected. Manuscripts and archives are acquired selectively. It is also Library policy to include materials published at later dates, if they are known to have special value on the antiquarian market. There are no restrictions, but the emphasis is on the United Kingdom, the United States, and western Europe. In the case of 2 or more libraries listed, the collection intensity is comparable.