Grazia Piras is an Italian author who lives in London and teaches yoga and mindfulness across Europe and the US. For 15 years, she worked with UNESCO and IIED on worldwide projects to preserve cultural and biological diversity and promote creativity. She believes that the magical power of breathing can transform our emotions and thoughts. She loves to play with her son and the two of them love dinosaurs. Sandra Aguilar was born in Madrid (1971) and has a degree in Modern Design from the Polytechnic University of Madrid. She has been working as an illustrator for 12 years. She recently completed a Masters in Sequential Illustration at Brighton University (UK). She has worked with a number of important publishing houses in Spain and abroad.