What is the cause of dark spots that sometimes appear on the paper of drawings and paintings? Reddish-brown spots fine art canvases are known as "foxing", caused by mold or the deterioration of the metallic art impurities left in the paper from the manufacturing process. other colors of spots may be one of many types of mold canvases damage. mold fine spores are everywhere art in the environment, canvases and mold thrives on cellulosic fine materials, especially in conditions of high humidity (above 65% art of relative humidity). keeping artworks out of high humidity areas like bathrooms or exterior walls, can help reduce the development of such stains. if i have a work of art on paper that appears to not be flat, should i be concerned? paper is hygroscopic, reacting to changes in climate by expanding when it is humid and contracting when it is dry. a gentle undulation in the paper called "cockling" occurs under these conditions, especially with larger works. this may impair the work aesthetically as well as cause mediums such as gouache to crack or flake as it is unable to expand and contract as the paper canvases itself does.

on view fine throughout the museum are an especially varied range of objects, images, and room-sized installations, including masterworks by some of the most influential artists of the past forty years, along with an impressive number of recently acquired works by emerging artists. open ends includes art eleven distinct exhibitions and ten large-scale works and installations that examine key themes and lines of affinity that define contemporary art and artists. the exhibition opens in three stages. architecture canvases hot and cold presents fine a wide range of images of architecture art principally drawn from the museum’s collections of photographs and architectural drawings. the exhibition includes works by architects including archigram and rem koolhaas are shown alongside the photography of andreas gursky and robert adams, for example, as well as works in different canvases media by artists such as gordon matta-clark, andy warhol, and joel shapiro.