Essia Hannachi is a doctor in Physics from the Faculty of Sciences of Bizerte, University of Carthage (Tunisia). She is working as a Visiting Scientist at Imam Abdulrahman Bin Faisal University (Saudi Arabia) and is also a Researcher at the University of Carthage (Tunisia). Her research focuses on various advanced (nano)-materials and their potential real-life applications. The primary task of her scientific publications is studying the physical properties (such as electrical, magnetic, dielectric, and mechanical) of diverse types of ceramics including superconductor materials, ferroelectric, multiferroic materials, and magnetoelectric composites. Dr. Essia has published numerous articles in internationally-refereed journals. She has also contributed as an author to several book chapters and was a reviewer for several prestigious journals in the field of material science and technology. Dr. Essia has participated in several arbitration committees for a number of international institutions and organizations.