Fibres stand as the strongest and stiffest materials and constitute the critical component of composites, which are rapidly replacing traditional materials in structural applications. The outstanding fibre properties come from the strong ionic covalent or metallic bonds that sustain the load. As the ductility of these links is very limited, fibres are brittle and their ultimate strength is controlled by their fracture behaviour. Further improvements in fibre properties can be obtained through a deeper knowledge of the physical mechanisms involved in fibre fracture, and this is the main objective of the interdisciplinary workshop in fibre fracture. Evidently, improving the fibre properties will have significant consequences in the development of new composite materials with enhanced properties.