City of books, Joshua 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.
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain, copy freely.
Easton, Matthew George. "Entry for 'Kirjath-sepher'". "Easton's Bible Dictionary".