_Lightweight Composites: Mechanics, Processing, Properties, and Applications_ provides practical information for all types of lightweight composites, including cutting-edge processing techniques and applications. It highlights the utilization of porosity in design and development of material systems in a unique and innovative way with strength and moduli property maps included throughout. The synthesis, mechanics, characterization, and testing of these materials are each covered at length, with particular attention paid to advanced manufacturing techniques such as 3D printing. Sandwich composites, lightweight nanocomposites, functionally-graded foams, syntactic foams, metal matrix composites, Al and Mg-based composites, and more are covered. Weight critical structural applications in aerospace, automobile, marine, electronics, sports, and biomedicine are also discussed, * Discusses the mechanics, synthesis, processing, properties, and applications of lightweight composites * Covers the recent cutting-edge advancements in design and development of metallic, polymeric, and ceramic-based lightweight composites * Highlights advanced manufacturing processes of lightweight composites, including 3D printing