Witchcraft, astrology, divination and every kind of popular magic flourished in England during the sixteenth and seventeenth centuries, from the belief that a blessed amulet of wax could prevent the assaults of the Devil to the use of charms to recover stolen goods. At the same time the Protestant Reformation attempted to take the magic out of religion, and scientists were developing new explanations of the universe. Keith Thomas’s classic analysis of beliefs held on every level of English society begins with the collapse of the medieval church and ends with the changing intellectual atmosphere around 1700, when science and rationalism began to challenge the older systems of belief.

"…skywriting is one place where visual and verbal imagery together make up the art…the shapes and spacing of the letters (taking into account the wind), the color of the vapor trail against a blue sky…and the message."