Broadband Dielectric Spectroscopy: Fundamentals and Applications offers an in-depth exploration of the current landscape of BDS, emphasizing techniques, analytical tools, devices, and materials. This comprehensive guide provides a thorough theoretical background and foundational overview, explaining experimental tests, data analysis via various formalisms, and detailed methods alongside case studies. It intertwines theory with real-world applications in advanced materials, offering a critical and pedagogical overview for researchers and engineers in materials chemistry, analytical chemistry, materials science, physics, and physical chemistry. The book delves into intersections between BDS and other analytical techniques across industries, showcasing its use in polymers, hybrid polymers, nanocomposites, ionic liquids, and active dielectrics. It covers fabrication, quality control, sensing, and monitoring processes, making it invaluable for understanding dielectric materials used in electronics and advanced applications. The text also includes detailed methods, protocols, and case studies, demonstrating BDS's efficacy in various industries such as polymers, composites, ceramics, electronic communications, and energy.