One of my favorite books is the Bible -- but maybe not for the reasons people might think. It's a great example of early storytelling. (I use that in a positive way!)
I do enjoy reading the collections of sacred texts or scriptures that Jews and Christians 
I like that you point out that Christians and Jews share the story -- through the Old Testament, anyway. So nice to find commonalities vs. differences!
Christianity and Judaism
Christianity is rooted in Second Temple Judaism, but the two religions diverged in the first centuries of the Christian Era. Christianity emphasizes correct belief (or orthodoxy), focusing on the New Covenant as mediated through Jesus Christ, as recorded in the New Testament. Judaism places emphasis on correct conduct (or orthopraxy), focusing on the Mosaic covenant, as recorded in the Torah and Talmud.
Christians believe in individual salvation from sin through receiving Jesus Christ as their Lord (God) and savior. Jews
not particularly concerned about how this might appear, adding "People can think what they like about me. I don't care. It's never been a popularity contest. I do it all for the community. In my view, you start life with nothing and you end it with nothing. I'd like to enjoy it all before I kick the bucket." His most recent project was a £500m redevelopment of Reading town centre, but this has been halted by the credit crunch.
Political activities.