Epoxy resins are versatile, high-performance materials essential to modern industry, used in coatings, adhesives, composites, and advanced technologies. This book offers a concise and comprehensive overview of recent developments in epoxy science, from conventional systems to sustainable, bio-based, and nanostructured materials. It highlights their exceptional mechanical, thermal, and dielectric properties, as well as innovations to improve performance and environmental compatibility. Combining scientific fundamentals with practical insights, the volume serves as a valuable reference for researchers, engineers, and students interested in the design and application of next-generation epoxy materials.