This & That, Ceci et Cela

“Tangram” shelving from Italian outfit Lago. Tangram is the name of the historic Chinese puzzle (???; Pinyin: q? qi?o b?n; literally “seven boards of cunning” [Wiki]) which consists of 7 geometric pieces (tans). The first two pictures shows 3D versions of the 7 pieces normally contained in every set of the classic puzzle. The aim is to use is to create specific shapes with the pieces without overlapping them.