**About the Editor**

**Enrique Macia´ Barber** earned his BA degree in Physics from the Universidad Complutense de Madrid in 1987 and earned the excellence award for his PhD from the same university in 1995. Dr. Macia´ is currently Full Professor of condensed matter physics at the Universidad Complutense de Madrid and has served as advisor in several national institutions, like the Real Sociedad Espanola ˜ de F´ısica (Spanish Royal Society of Physics) and the Real Academia de Ciencias Exactas, F´ısicas y Naturales (Spanish Royal Academy of Sciences). In 2010, Prof. Macia´ received the RSEF-BBVA Foundation Excellence Physics Teaching Award. His research interests cover different topics including electronic, thermal, and optical transport properties in aperiodic multilayers and DNA-based polymers; the nature of chemical bonding in quasicrystalline alloys; and the primary source of phosphorus compounds in chemical evolution. He is also author of several monographs and the books Thermoelectric Materials: Advances and Applications http://www.crcpress.com/product/isbn/9789814463522; Aperiodic Structures in Condensed Matter: Fundamentals and Applications http://www.crcpress.com/product/isbn/9781420068276; and The Chemical Evolution of Phosphorus. An Interdisciplinary Approach to Astrobiology http://www.appleacademicpress.com/the-chemical-evolution-of-phosphorus-aninterdisciplinary-approach-to-astrobiology/9781771888042. He is currently conducting a longterm research program on the role of aperiodic order in nature and leading several research projects on the thermoelectric properties of quasicrystals.
