Judaism is one of, if not the first monotheistic religion. The Jews worship one God, who they believe is the creator of all things, including the world and all life on earth. This relationship with God is the foundation of the religion as the people believe they must follow God's laws, as dictated in the Torah, although what books specifically constitute the Torah is debatable. Jews also believe that it is their responsibility to treat all of God's creation with respect.
Judaism includes a large number of rules and obligations, many of which are found in various books of the Torah. This helps define how a person should live, how they should worship, and even how they should eat as Judaism has a large number of dietary restrictions.
Islam (the name of the religion, whose followers are called Muslims) is a monotheistic religion, whose holy book is called the Qur'an. The Qur'an is believed to be the word of God spoken through the prophet Muhammad from 609-632 CE (Common Era is preferred over AD (Anno Domini or "year of the Lord") since the Islamic world doesn't believe Jesus was the messiah). Islam believes Muhammad was the last prophet sent to earth by God, the last in a long line of prophets, which includes Moses, Abraham, and Jesus among others.