Books about John of God and the Casa de Dom Inácio:
The movie “Healing” is one of the best introductions overall.
Abadiania Portal has lots of useful information about travel to the casa, casa procedures, guides, pousadas, taxis, -possible to inquire about reservations from there. Also has most updated information on John of God’s own travel schedule.
Traveling to the Casa is not always the most up to date, but has lots of useful guidance.