Grudem tells us that God created us so that we would imitate him and so that he could look at us and see something of his wonderful attributes reflected in us. He states that to be in God's image means to be like God and to represent God on the earth.
For each of the aspects of business activity, Grudem challenges the reader to ask how they provide unique opportunities for glorifying God. He writes that we will find that in every aspect of business there are multiple layers of opportunities to give glory to God, as well as multiple temptations to sin. As he looks at each aspect he expands on both the opportunities and temptations.
I found this to be a helpful and quick read that I recommend to you.