The many examples of sculpture, wall paintings and decoration features found within the abandoned temple and monastery compounds are important in establishing the uniqueness and outstanding importance of the three towns. The art and architecture of Sukhothai, Si Satchanalai and Kamphaeng Phet have been extensively studied by art historians who have identified and catalogued its unique style, distinctive from Khmer and other earlier regional styles, and who consider the Buddhist monuments and their associated sculptures of the three towns to be masterpieces of artistic creation, giving the art style its own name: “Sukhothai style.” Stone inscriptions found at the sites provide evidence of the earliest examples of Thai writing and give a detailed account of the economy, religion, social organization and governance of the Sukhothai Kingdom.