Check out the Messiah Lutheran Resource Center. Bibles, books and other items for all ages are sold at no profit so that all savings are passed on to you! Most of the available items are found in the Concordia Publishing House (CPH) catalog and are at a 20% discount.
These devotions can help you spend some time in the Word of God.
If you are asking yourself, who are the Lutherans, these articles by two modern Lutheran Theologians may help you.