The Wake Up Call was written after the author, Pietro Hattingh, claims she was inspired by God to deliver a message to the human beings on Earth. She writes about what is to become of the world and what will happen if the people do not abide in "Her Calling", according to the inspiration she had from God. Hattingh's book contains solutions, ideas about the coming days and warnings about what will become of the world.
"Unless a miracle happens, great catastrophes will appear on Mother Earth and human beings will have to wake up to their inner call," Hattingh says.
The book is intended for an audience interested in inspiration, self-help or self-improvement.