Due to their one-dimensional structures and novel physical properties, nanofibrous materials have been extensively investigated and hold promising applications in various fields, including electronic, optical, semiconductors, sensors, polymer fillers and non-woven porous membranes. This book presents current research in the study of the synthesis, properties and application of nanofibres. Topics include the functionalisation and activation of carbon nanofibres; fabrication of aligned polymer and metal oxide nanofibres by electrospinning; inorganic nanofibres for novel separation membranes; the physics behind the vapor-liquid-solid route and carbon nanofibre formation; preparation and modification of chitin nanofibres; and the synthesis of composite carbon nanofibres with macroscopic shaping.