The world within -- Combination shapes -- Unit shapes: Triangle -- Square -- Hemisphere -- Diamond -- Unit shapes: Rectangle combinations -- Unit shapes: Cubic combinations -- Paper egg -- Three trees, stadium, snow house, growing crystal, Suzhou prince regent's palace -- Mystery box -- Loop -- Crystal card -- Fundamentals of origamic architecture: Materials and tools -- Practice in making origamic architecture -- Step-by-step instructions for making crafts -- Instructions and actual-size patterns.