chose to focus my research on Caatinga biome, in Brazil. Having worked with so many broad themes involving rural and local development linked to forests in Brazil, one is expected to focus on the Amazon region, the most 'famous' tropical forest spot in the planet. However, working in a national context I discovered other 'tropical forest' biomes that receive much less attention, such as Cerrado and Caatinga. In Caatinga I had the opportunity to meet three important keyactors while I was working in the Brazilian Forest Service, and they showed me a completely new and different world, they are Maria Auxiliadora Gariglio (Dôra), Newton Barcellos (in memoriam), and Frans Pareyn. Their passion for forest and people in Caatinga certainly was one of the main reasons that made me focus my research on sustainable forest management there. I would also like to thank all the people I have met before and during this research and that fight for a better use of forest resources in Brazil and Caatinga, and all the interviewed people including politicians, civil society representatives, technicians, industrials, and local communities. Their voices are a background of each word of this thesis. I also need to be thankful for the support of a lot of people that were far away during the last years giving me special support! I am thankful to my grandparents, especially to Nonna Sandra who taught me through her life path the importance of always being open to see reality through a different lens! My parents, Faggin and Betta, for giving me the possibility to be part of this world! My second and third mother, Teté and Bárbara, for choosing me as their 'step' daughter! My brother and sisters, Caio, Dora, and Marina for always being on my side and for sharing the difficult and pleasurable processes of growing up together! Thanks also for my nephews for being so kind with this beautiful and marvellous aunt! (Teo can explain this English expression to you, Maria, Janaina, Antonio, and 'to be born' João!). To my friends, my chosen family, thanks for supporting me on my different lifetime challenges: Nik, Bel, Ana Clara, Nina, Daninha, Iglu (in memoriam), Kibons, Bianca, Tosta, Moves, Nicole, Laurita, and Sandréx, and to all their partners, sons, and daughters for taking care of them! Without you, life would be much less interesting! A special thanks to Sandra and Laura, for being on my side all these years and for sharing the challenges of living with a PhD in the room! Thanks also to Alex for the discussions and beers in and outside our shared office. Thanks also to Carla for the support and friendship during these years and for all the new Portuguese words learned. Olivier, Hugo, Murat, Charlie, and Lucian thanks for taking care of these important friends. Thanks also to Lorenzo, Vicky, and Luna for feeding me in between the stress of writing and for the peaceful affirmation: you are going to make it! Thanks also to Ana and Nico for the trips and briscolas around the most beautiful places in the Mediterranean. I am also thankful for having...