To search for an innovative solution that combines biology, design and technology to replace the traditional Expanded Polystyrene Packaging (EPS) with a 100% biodegradable and compostable bio-based product, made from mushroom mycelium in agroforestry or agroindustrial waste. The objective of this book is to promote the knowledge and application of mycelium as a new material and little used in the global market, being the perspective to look for an opportunity and a tangible proposal for developing countries.