what is this art form about?
It  is a technique of mural painting executed upon freshly laid ("wet") lime plaster.
Fresco
 is a technique of mural painting executed upon freshly laid ("wet") lime plaster. 
lord make me the channel of thy peace UNANSWERABLE what was the prayer of saint francis about? It is a widely known Christian prayer for peace. who is the saint mentioned? Francis of Assisi was an Italian Catholic friar, deacon, mystic, and preacher. what does the last mentioned term mean? A preacher is a person who delivers sermons or homilies on religious topics to an assembly of people. was he a traveler too? UNANSWERABLE has he written any book? Saint Francis is considered the first Italian poet by literary critics. He believed commoners should be able to pray to God in their own language, and he wrote often in the dialect of Umbria instead of Latin. was he interested in art? There are large early fresco cycles in the Basilica of San Francesco d'Assisi
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Fresco [SEP] Introduction
Fresco (plural frescos or frescoes) is a technique of mural painting executed upon freshly laid ("wet") lime plaster. Water is used as the vehicle for the dry-powder pigment to merge with the plaster, and with the setting of the plaster, the painting becomes an integral part of the wall. The word "fresco" () is derived from the Italian adjective "fresco" meaning "fresh", and may thus be contrasted with fresco-secco or secco mural painting techniques, which are applied to dried plaster, to supplement painting in fresco. The fresco technique has been employed since antiquity and is closely associated with Italian Renaissance painting.