I agree that external content from the external platform YouTube are displayed. Personal data can be sent to third-party platforms be transmitted. More about this in our general Data protection or in the Provider's privacy policy.
Ever heard of the butterfly effect? It’s the idea that a butterfly flapping its wings on one side of the world can cause a tornado on the other. The butterfly in this book doesn’t do that, so don’t worry. But it’s not just decoration either. The flowers and animals are loaded with symbolism, and underline the book’s content – a magnificent medieval book of hours. But what is a book of hours, and is there more to be found inside?