E\PCOS 2022 brings back together the phase-change community to discuss recent and breaking scientific and technology achievements of phase-change materials alongside their possible new application areas. It is the premier and independent phase-change materials conference, which has evolved to represent emerging interests in neuromorphic computing, phase-change photonics and plasmonics. The E\PCOS symposium provides an informal atmosphere which encourages interactions among participants and creates fruitful interactions between leading researchers of industry and academia.