Ramiro Calle is a pioneering yoga teacher in Spain, having founded the Shadak yoga centre in 1971, through whose doors have passed more than half a million people. He was a professor of yoga at the Autonomous University of Madrid, and has published more than two hundred books and countless interviews on yoga and oriental philosophy. He has visited India numerous times and has also published hundreds of anonymous spiritual tales from the East in a series of volumes. He received the Spirituality Prize for his book “Grandes Maestros Espirituales” (Great Spiritual Masters).
Nivola Uyá is an award winning illustrator and audio-visual artist. Her books include Life is Beautiful! (Second Best Cover Illustration and Honorable Mention as Best Children's Fiction Picture Book-English at the 2013 International Latino Book Awards) and A Very, Very Noisy Tractor.