There are 613 laws that Jews people try to uphold. Since we are all humans we know that not all of them can be held. Some of these laws that they uphold are found in Leviticus and Exodus (the Ten Commandments). One of the laws is the Kosher laws in which they cannot eat pork, or eat dairy with meat. They also have family laws and marriage laws. They have laws for what you can and cannot do on Shabbat. Hopefully this helps. There are so many laws that it would be difficult to name all of them.