noun
paperback pocket edition; shinsho format
Refers to a specific Japanese paperback format roughly 17×11 cm, commonly used for non-fiction and light novels. The term is a compound of 新書 (new book) and 版 (edition).
この小説は新書版で発売された。
This novel was released in the shinsho paperback format.
新書版は持ち運びに便利なサイズだ。
The shinsho format is a convenient size for carrying around.
Compound of 新書 (shinsho, 'new book') and 版 (ban, 'edition'). The term refers to a specific Japanese book format that became popular in the mid-20th century.