Topological semimetals are quantum materials that are not only extremely interesting from a theoretical point of view but also have a great potential for technological applications in which superconducting, semiconducting and other semimetal behaviors are involved. Specific applications include quantum computing, fabricating superconducting microstructures, environmental ‘harvesting’ of energies which would otherwise go to waste immediately as heat, and fabricating topological quantum devices on industrial-scales. The book references 307 original resources and includes their direct web link for in-depth reading.