Framed as a dialog between the king of the Khazars, a Central Asian kingdom, and a Rabbi, the Khazari is an exposition of late medieval Jewish philosophy. Legend has it that the king of the Khazars held a symposium to decide whether his people should convert to Judaism, Christianity or Islam. This book is an account of the Jewish side of this debate.

The Book of the Kuzari is one of the most famous works of the medieval Spanish Jewish philosopher and poet Judah Halevi. It is regarded as one the most important apologetic works of Jewish philosophy. The Kuzari takes place during a conversion of some Khazar nobility to Judaism. Divided into five parts it takes the form of a dialogue between a rabbi and a pagan. The pagan is then mythologized as the king of the Khazars who has invited the rabbi to instruct him in the tenets of Judaism. The Kuzari's emphasis is on the uniqueness of the Jewish people. The ideas and style of the work played an important role in debates within the Haskalah or Jewish Enlightenment movement.

"Kitab al Khazari" from Judah Halevi. Jewish Spanish philosopher and poet (1075-1141).