Why were the following avantgarde works valuable and why is

Why were the following avant-garde works valuable, and why is it important that the public find an appreciation in these works? What does avant-garde mean? Marcel Duchamp, \"Nude Descending a Staircase, No. 2\", 1912 Richard Serra, \"Tilted Arc, 1981

Solution

Avant-grade is a new and experimental ideas and methods in art,music,or literature.

Nude Descending a Staircase, No.2 is a painting by Marcel Duchamp in 1912. It is an oil painting on canvas with dimensions of 147cm×89.2cm in portrait, seemingly depicts a figure demonsrating an abstract movement in its ochres and browns.

Tilted Arc is a sculpture by artist Richard Serra installs in New York city in 1981. It has been commissioned by the Arts in Architecture program of the US General Services Administration, which earmarks 0.5% of a federal building\'s cost for artwork.