Asia is by far the largest continent in the world. The global expansion of the church, which emanated from the Middle East (as explored in the first book in the series) moved along various routes to take root in Asia proper. Christianity in Asia is extraordinarily diverse, with very ancient forms of the faith dating to the time of the apostles. The western church will be enlightened by the dynamic, multi-pronged Asian story of Christianity. Asian Christianity is also distinct due to the numerous non-traditional, house, or cell movements found throughout the region. The diversity of Christianity in Asia makes Christians in this region critical for the future of global Christianity.