How many different types of Lutheranism are there?

Answer 1

One. The basis for doctrine is the same in all Lutheran jurisdictions an "synods." Some issues of difference arise amongst them along lines of "liberal" and "conservative" interpretations and applications of Biblical studies and of the Lutheran symbolical writings. In Australia, as in the US, there is just one Synod. However, there are a few scattered "breakaway" Lutheran churches whose differences exclude them from the common synod. Prior to 1966, there were two distinct synods in Australia.