For the first time ever, more people now live in cities than outside them. Join veteran researcher and missiologist Patrick Johnstone as he explores the fastest growing cities and megacities, showing how Christian workers address people's spiritual, physical, and social needs. Cities offer big headaches and vast opportunities, and agencies that once focused on rural work are increasingly turning their attention to urban centers. Journey with Patrick as he shares God's heart for the city and introduces pastors, missionaries, and community workers who are addressing urbanization's key challenges. God has a heart for today's cities. See how you can join this urgent mission