letter of inspiration This publication is the story of the Amazon Summer School 2018 – a three week immersion course into the Amazon rainforest to cultivate sustainability leaders. International, multi-cultural and multi-talented people from many different sectors come together with a shared passion for sustainability and social engagement as well as a desire to be part of a community of thinkers and practitioners in this field. The Amazon Summer School is hosted in Tumbira, a community within the Rio Negro Protected Area in the Brazilian State of Amazonas. The blend of a rich and powerful natural environment, traditional riverine knowledge and innovative social technologies from local and global leaders provides a fertile soil for learning, exchange and growth.