The word “Lutheran” is taken from the name of a 16th century Roman Catholic monk, Martin Luther. Martin Luther did much to spur helpful reforms within the Church, reminding it of a key understanding: it is by God’s grace that we and the world are saved, not by our actions.
The “Lutheran” designation is not meant to divide and insulate us from other Christians. Rather it serves as a reminder of the variety in creation, and hence the worldwide Christian Church, in which we can all learn from and be enriched by one and another.
Similar to Roman Catholic and Anglican churches, our worship can be described as a blend of historic, eclectic, contemporary and global liturgy.
A good starting document to understand what we believe and hold fast to is here.