The book presents select peer-reviewed proceedings of the International Conference on Interactive Design and Digital Manufacturing (ICIDDM 2025). The volume brings together contemporary research contributions from academicians, researchers, industry professionals, and emerging scholars working in the domains of advanced materials, smart manufacturing, computational engineering, and sustainable production technologies. The book covers a wide spectrum of emerging research themes and highlights recent advances in composite materials, additive manufacturing, lightweight structures, nanocomposites, sustainable engineering materials, and intelligent processing techniques. The chapters collectively address critical challenges associated with modern engineering applications, focusing on performance enhancement, eco-friendly material development, process optimization, and multifunctional engineering systems. Particular emphasis is placed on sustainable and hybrid composite materials, polymer and metal matrix composites, nanomaterial reinforcements, smart processing routes, and computational approaches for advanced manufacturing applications. With contributions spanning both theoretical and experimental investigations, the volume serves as a valuable reference for researchers, practicing engineers, postgraduate students, and professionals working in mechanical engineering, materials engineering, manufacturing engineering, and allied interdisciplinary fields. The book is particularly relevant to readers interested in advanced manufacturing technologies, digital production systems, additive manufacturing, sustainable materials engineering, computational modeling, and smart industrial applications. By integrating innovative research outcomes with practical engineering perspectives, this volume contributes meaningfully to the advancement of next-generation manufacturing and materials technologies.