old books

...General term for books that are generally circulating in the used book market. For convenience, the used book industry distinguishes between books that are still available as new publications as "secondhand books" (English: secondhand books), books that have been out of print for a long time and have become valuable as "old books," and rare books that are valuable in the early modern period or earlier. They are also divided into Western, Japanese, and Chinese books according to their binding, and general books, specialized books, back issues of magazines, and reference materials according to their content.

*Some of the terminology that mentions "old books" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…一般に古書市場で流通している本の総称。古書業界では便宜的に，新刊書でも入手しうる書物を〈古本〉(英語のsecondhand books)，絶版後久しく，価値の高くなった書物を〈古書〉(old books)，さらに近世およびそれ以前の貴重書を〈古典籍〉(rare books)と区別している。また造本に従って洋本，和本，唐本，内容に従って一般書，専門書，雑誌バックナンバー，資料ものなどに分かれる。…

※「old books」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報