Regalado Trota Jose wrote Simbahan: Church Art in Colonial Philippines 1565-1898. It won the Philippine National Book Award in the Art Category in 1992. He received the Cultural Center of the Philippines Centennial Award for the Arts in 1999. He was the youngest awardees among "100 outstanding Filipinos who have helped build the Filipino nation through arts and culture during the last 100 years," and was the only representative for the Art History category. Regalodo Trota Jose has advocated for the study and protection of the Cultural Heritage of the Catholic Church in the Philippines since the 1960's. As a specialist in Philippine sacred art and architecture, he has collaborated with the Ayala Museum, the International Council for Monuments and Sites (ICOMOS) and the University of the Philippines. He belonged to the Philippine Madrigal Singers too. He was former Commissioner for Cultural Heritage of the National Commission for Culture and the Arts. Currently, he is the archivist of the University of Santo Tomas and a faculty member of the UST Cultural Studies Heritage Program. Allan Jay Quesada is a photographer, a painter and an architect. He has the eye, the hand and the technical background that produced the inspired illustrations of Simbahan. The kilometric list of awards for his works from his pre-teen years through his adolescence and school years of secondary and tertiary levels speaks volumes about the rapid progression and maturation of his art. This list consistently stretched up to his current professional status. He won Grand Prize of the Churches of the North Photo Competion in 2018 here. He won the Grand Prize in May 2019 in Madrid, Spain at the Climato Tracker and WHO's Climate Change and Health Photo Competition. He started watercolor painting at 5 years of age. His works are mostly landscapes, urban scenes and heritage structures. He looks up to Alvaro Castagnet and Joseph Zubukvic, his watercolor idols. Allan gives free painting and rendering seminars at his alma mater, Pamantasan ng Lungsod ng Maynila (PLM). His You Tube Channel is "Watercolors by Allan Jay Quesada.". He shares regular tutorials here. He belongs to the International Watercolor Society of the Philippines. He has been a member of the United Architects of the Philippines Manila Maharlika Chapter since 2011.