In 1994, the Ideographic Rapporteur Group agreed to include Sino-Vietnamese characters in Unicode. In 1993-2001, the Han-Nom Institute assembled a collection of 9,299 “Nôm Ideographs" in four sets. These are the V0, V1, V2, and V3 characters shown below. A Sino-Vietnamese character is first assigned a V Source code, and later a codepoint. These codes are used to transmit and store the character electronically. An appropriate font must be installed to render them.