书房 (shū fáng) literally combines 书 (shū), meaning 'book' or 'writing', and 房 (fáng), meaning 'room'. Together, it refers to a dedicated room used for reading, studying, writing, or working — essentially a personal study or home library. Unlike a public library (图书馆), a 书房 is typically private, quiet, and equipped with bookshelves, a desk, and comfortable seating. It reflects both function and cultural value: in traditional Chinese homes, the 书房 was a space for scholarly pursuit and self-cultivation.

In modern usage, 书房 remains common in homes, apartments, and even offices — especially where someone needs a quiet, focused environment. While it often contains many books, its defining feature is its purpose: intellectual activity, not just storage. The word carries a subtle connotation of seriousness, order, and personal discipline, making it more formal and refined than generic terms like 房间 (room).