Over 2 million Avaaz members are calling on world leaders to champion a Global Deal For Nature that protects and restores at least 50% of the planet. Thousands of us have also written heartfelt letters to 10 key world leaders who can be heroes for nature and champion 50% protected locally and globally. These letters, sent in 14 languages, have been turned into personalized books which are being hand-delivered to world leaders. Explore the books below -- each book is one of a kind, with specific messages to world leaders from their countries, regions and the world.