[Hebrew] Sefer in Hebrew means any kind of `book` (plural s`farim.) It is derived from the same Hebrew root-word as sofer (`scribe`), sifriyah (`library`) and safrut (`literature`). Among Orthodox Jews it is used for books both of the Tanakh, the oral law (Mishnah and Talmud) or any work of Rabbinic literature. Works unrelated to Torah stud...