your quaran says nothing of judas being on the cross how dare you disrespect your own religion?
The term "People of the Book" is mentioned 67 times in 33 ayahs of The Quraan.
As the word "Book" is singular, it refers to one book, that is the Tawraah which Allaah revealed to Prophet Moossa. Initially the term referred to the Jews.
As Prophet Eessa came in the capacity of a Messenger of Allaah to the Children of Israel to confirm the Tawraah, the term extended to cover the Nassaara (later called Christians).
The Jews refer to the Tawraah and the rewritten forms of thereof, such as the Talmood and the Tanakh, while the Christians, who have no book of revelation, refer to the Gospels written by anonymous authors. The fact is that that the Injeel which Allaah revealed to Eessa was a form of "Prophetic Wisdom" with which Prophet Eessa faced the Rabbis.