Easel in the context of Wall painting

A pinacotheca (Latin borrowing from Ancient Greek: πινακοθήκη, romanized: pinakothēkē = πίναξ, pinax, '(painted) board, tablet' + θήκη, thēkē, 'box, chest') was a picture gallery in either ancient Greece or ancient Rome. The name is specifically used for the building containing pictures which formed the left wing of the Propylaea on the Acropolis at Athens, Greece. Though Pausanias speaks of the pictures "which time had not effaced", which seems to point to fresco painting, the fact that there is no trace of preparation for stucco on the walls implies that the paintings were easel pictures. The Romans adopted the term for the room in a private house containing pictures, statues, and other works of art.

In the modern world the word is often used as a name for a public art gallery concentrating on paintings, mostly in Italy (as "Pinacoteca"), such as the Pinacoteca Vaticana of the Vatican Museums (which is usually meant when the plain word is used), the Pinacoteca di Brera in Milan (more often "the Brera" informally), the Pinacoteca Giovanni e Marella Agnelli built on the roof of the former Lingotto Fiat factory in Turin, Italy, with others in Bologna and Siena. In Brazil, there is the Pinacoteca do Estado de São Paulo. In Paris, the Pinacothèque de Paris. In Munich the three main galleries are called the Alte Pinakothek (old masters), Neue Pinakothek (19th century) and Pinakothek der Moderne. The Pinacotheca, Melbourne, was a gallery for avant-garde art from 1967 to 2002. At Hallbergmoos, near Munich Airport, there was the Pinakothek Hallbergmoos (20th and 21st century) between 2010 and 2014.

Verdigris (/ˈvɜːrdɪɡriː(s)/) is a common name for any of a variety of somewhat toxic copper salts of acetic acid, which range in colour from green to a bluish-green depending on their chemical composition. Once used as a medicine and pharmaceutical preparation, verdigris occurs naturally, creating a patina on copper, bronze, and brass, and is the main component of a historic green pigment used for artistic purposes from antiquity until the late 20th century, including in easel painting, polychromatic sculptures, and illumination of maps. However, due to its instability, its popularity declined as other green pigments became readily available. The instability of its appearance stems from its hydration level and basicity, which change as the pigment interacts with other materials over time.

Hans Wild (1912–1969) was a British photographer who worked for Life magazine from 1938 to 1946. Some of his best known work appeared on the cover of Life including a photo of historian Charles Seltman in 1943 and British Prime Minister Winston Churchill while painting with an easel in 1946.

Wild became a professional photographer at 24 years old in 1936, and worked for Life in various capacities in the United States, England, France and Italy. He took numerous photos documenting World War II, as well as portraits of famous people including John Cage, Merce Cunningham, Vivien Leigh, Mary Welsh Hemingway, Bing Crosby, actress Pat Kirkwood, the painter Thomas Hart Benton, E. V. Knox editor of Punch, Foreign Secretary Anthony Eden, Rupert Neve, fashion designer Elsa Schiaparelli, Laurence Olivier, Daphne du Maurier, C. S. Lewis, Alexander Fleming, Chinese Ambassador Guo Taiqi, Nancy Astor, Viscountess Astor, Benjamin Britten, Louis Mountbatten, 1st Earl Mountbatten of Burma, and American diplomats Jefferson Caffery and Anthony Joseph Drexel Biddle, Jr., Louis II, Prince of Monaco with Ghislaine Dommanget and Rainier III, Robert Anthony Eden, David Lloyd George, Thomas Beecham.