can you give an example of these kind of works?
This fresco cycle was to depict "Stories of the Life of Moses", "Stories of the Life of Christ"
Italian Renaissance painting
This fresco cycle was to depict "Stories of the Life of Moses" on one side of the chapel, and "Stories of the Life of Christ" on the other with the frescoes complementing each other in theme. "The Nativity of Jesus" and the "Finding of Moses" were adjacent on the wall behind the altar, with an altarpiece of the "Assumption of the Virgin" between them. 
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 what is this art form about? It  is a technique of mural painting executed upon freshly laid ("wet") lime plaster. how did it get the name? 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. what are different types of it? Fresco-secco, "mezzo-fresco" where are these types found? An old fresco from Mesopotamia is the "Investiture of Zimri-Lim" (modern Syria), dating from the early 18th century BC. why this art form has to be conserved? The water is absorbed and rises up through the walls often causing damage to frescoes. Venetians have become quite adept in the conservation methods of frescoes. The mold aspergillus versicolor can grow after flooding, to consume nutrients from frescoes.
wiki:9129285
Italian Renaissance painting [SEP] Papal commission
Each painting required a landscape. Because of the scale of the figures that the artists agreed upon, in each picture, the landscape and sky take up the whole upper half of the scene. Sometimes, as in Botticelli's scene of "The Purification of the Leper", there are additional small narratives taking place in the landscape, in this case "The Temptations of Christ". Perugino's scene of "Christ Giving the Keys to St. Peter" is remarkable for the clarity and simplicity of its composition, the beauty of the figurative painting, which includes a self-portrait among the onlookers, and especially the perspective cityscape which includes reference to Peter's ministry to Rome by the presence of two triumphal arches, and centrally placed an octagonal building that might be a Christian baptistry or a Roman Mausoleum.