Kirjath-sepher

city of books, (Josh 15:15 ); same as Kirjath-sannah (q.v.), now represented by the valley of ed-Dhaberiyeh, south-west of Hebron. The name of this town is an evidence that the Canaanites were acquainted with writing and books. "The town probably contained a noted school, or was the site of an oracle and the residence of some learned priest." The "books" were probably engraved stones or bricks.

EBD - Easton's Bible Dictionary