conceptual art was influence by the ending of the modernism

Traditional art is a depiction of something, where skill and choice of material are of the essence.

Conceptual art stresses the idea, the concept, behind the artwork, where the execution is secondary.

Here is a good section on Conceptual Art :

the-artists.org/artistsbymovement/Conceptual-Art/

Conceptual art originated in America in 1961. it came to England in 1969.

Zhen Chen has written:

'Transexperiences' -- subject(s): Conceptual art, Conceptual art., Interviews

Robert C. Morgan has written:

'The end of the art world' -- subject(s): Art criticism, Art, Modern, History, Modern Art

'Conceptual art' -- subject(s): Conceptual art

'Between modernism and conceptual art' -- subject(s): Arts, Modern, Modern Arts