This book edited by leading experts focuses on the foundation of ferrite materials since inception to its contemporary scenario including their vast applications. The contents range from the basic physics and chemistry of ferrites to its applications in telecommunication, SAR reduction, EMI shielding, hyperthermia treatment, and water decontamination. It also focuses on ferrite nanoparticles for sensing application, energy-storage applications, antimicrobial applications, corrosion protection applications, among others. This book is a useful reference to those in academia and industry.