This is a great book that provides a succinct and accessible overview of the distinctiveness of traditional, historical Lutheran theology. If you're a Lutheran pastor, I'd suggest considering this book for use in new member classes or possibly even confirmation classes as well as adult Bible studies. If you're a Lutheran, this is a great way of reviewing or learning the basics of Lutheran theology, and makes a helpful companion to the Small Catechism as well as more weighty Lutheran writings such as The Book of Concord.
If you're not a Lutheran, this is still a very helpful book that discusses some important aspects of Christian theology (How are we saved? What is the role of Sacraments in the church? What can we know about God? How do we live our lives? What is worship?). Of course these topics will be treated from a Lutheran perspective, but you should find value if you're interested in how conservative Biblical Christianity approaches some of these topics.