Define the term monogram. why are they used by artists?

A monogram is a motif made by overlapping or combining two or more letters or other graphemes to form one symbol. And most artist use them for signatures.

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Hi,is this statement true or false?   descendants of the inca and maya use modern techniques rather than keeping their ancient culture alive by making weavings based on traditional weavings.-false the mayans and incas both continue traditional methods as well as modern.