The world saw wave after wave of religious revival and spiritual renewal from the seventeenth through nineteenth centuries, including Pietism, Methodism, and the Great Awakenings. German Lutheran Pietism, especially as represented by A. H. Francke's institutions at Halle, served as a clearinghouse for many of the swells of Protestant reformation. One of the hubs of that communications network was London, where Anthony William Boehm was active in the first decades of the 1700s. Not only did Boehm become a well-placed ambassador of Francke's enterprises, but he was also a gifted preacher, influencer, translator, and author in his own right. This book highlights Boehm's role as a global correspondent. In 1737, fifteen years after his death, over one hundred and fifty of Boehm's letters were published. Translated for the first time into English, these letters offer readers an illuminating glimpse into the life of a Halle Pietist whose reach extended from London to Germany, India, and the fledgling American colonies.