I had watched the following podcasts. Masaccio was one of the great painters in the renaissance period. One of his famous art work “Holy trinity.” It was a fresco that creates 3 dimensional views to the audient. He completely his art work when he was 20. This work of art has important effect during the renaissance period. He using a geometry technique was extraordinary and all element of architectural grow out his perspective design. He had created something never seen before. Masaccio had focus a lot on the detail of his art work. He had start a new era of art work.