Fresco (plural either frescos or frescoes) is any of several related mural painting types, executed on plaster on walls, ceilings or any other type of flat surface. The word fresco comes from the Italian word affresco [afˈfresːko] which derives from the Latin word for "fresh". Frescoes first developed in the ancient world and continued to be popular through the Renaissance. Declining in popularity, they enjoyed something of a revival in the 20th century.

Buon fresco technique consists of painting in pigment mixed with water on a thin layer of wet, fresh (hence the name) lime mortar or plaster, for which the Italian word for plaster, intonaco, is used. Because of the chemical makeup of the plaster, a binder is not required, as the pigment mixed solely with the water will sink into the intonaco, which itself becomes the medium holding the pigment. The pigment is absorbed by the wet plaster; after a number of hours, the plaster dries and reacts with the air: it is this chemical reaction which fixes the pigment particles in the plaster. One of the first painters in the post-classical period to use this technique was the Isaac Master in the Upper Basilica of Saint Francis in Assisi. A person who creates fresco is called a frescoist.

Jacque Fresco (born March 13, 1916), is a self-educated structural designer, architectural designer, philosopher of science, concept artist, educator, and futurist. His interests span a wide range of disciplines including several in philosophy, science, architecture and engineering. Fresco writes and lectures extensively on his view of subjects ranging from the holistic design of sustainable cities, energy efficiency, natural resource management, cybernated technology, advanced automation, and the role of science in society, focusing on the benefits he thinks they may bring. With his colleague, Roxanne Meadows, he is the founder and director of an organization known as The Venus Project, located in Venus, Florida. He currently promotes a fundamental change in anthropic organization through the global implementation of a novel socio-economic system predicated on social cooperation, technological automation, and scientific methodology, called a Resource-based economy.

In contemporary culture he has been popularized by three documentaries, Future By Design,Zeitgeist Addendum, and Zeitgeist: Moving Forward, His Venus Project has been inspirational worldwide, especially to activists.

David Howell Evans (born 8 August 1961), more widely known by his stage name The Edge (or just Edge), is a musician best known as the guitarist, backing vocalist, and keyboardist of the Irish rock band U2. A member of the group since its inception, he has recorded 12 studio albums with the band and has released one solo record. As a guitarist, The Edge has crafted a minimalistic and textural style of playing. His use of a rhythmic delay effect yields a distinctive ambient, chiming sound that has become a signature of U2's music.

The Edge was born in England to a Welsh family, but was raised in Ireland after moving there as an infant. In 1976, at Mount Temple Comprehensive School, he formed U2 with his fellow students and his older brother Dik. Inspired by the ethos of punk rock and its basic arrangements, the group began to write its own material. They eventually became one of the most popular acts in popular music, with successful albums such as 1987's The Joshua Tree and 1991's Achtung Baby. Over the years, The Edge has experimented with various guitar effects and introduced influences from several genres of music into his own style, including American roots music, industrial music, and alternative rock. With U2, The Edge has also played keyboards, co-produced their 1993 record Zooropa, and occasionally contributed lyrics. The Edge met his second and current wife, Morleigh Steinberg, through her collaborations with the band.