The handcrafts of Guerrero include a number of products which are mostly made by the indigenous communities of the Mexican state of Guerrero. Some, like pottery and basketry, have existed relatively intact since the pre Hispanic period, while others have gone through significant changes in technique and design since the colonial period. Today, much of the production is for sale in the state's major tourism centers, Acapulco, Zihuatanejo and Taxco, which has influence the crafts’ modern evolution. The most important craft traditions include amate bark painting, the lacquerware of Olinalá and nearby communities and the silverwork of Taxdo.