I have little bit knowledge of Abrahamic Religion (Christianity, Islam). When I had seen the community first some questions came to my mind.
I know that Hazrat Musa (a:) (prophet of Muslim) is God of Jews (I had read that in a book. That's why I am not sure of the knowledge). And, Hazrat Isha (a:) (prophet of Muslim) also known as Jesus is God of Christianity (but, some believes Allah is their God and some believes Jesus is), I don't want to criticize about the topic. As Monica mentioned Genesis as Holy Book of Jews in [this post](https://judaism.codidact.com/posts/282274#answer-282274), but, I had read somewhere that Genesis is Holy Book of Christianity.
And, I know that Torah is main holy book of Jews. But, Muslim has 4 main holy books;
1. Torah (Actually, I usually called it Taorat or, Taorah)
2. Jabur (I am not sure if it is called something else in English)
3. Ingil (I am not sure if it is called something else in English)
4. Quran (It is the main one which Muslim follows)
As Torah is holy book of Muslim than, how it can be holy book of Jews. What's the difference between Muslim and, Jews than? I can't understand the main concept of Judaism. What am I missing?