Composition with Blue, Red, Yellow, and Black (1922) is a famous abstract painting by Dutch artist Piet Mondrian, a co-founder of the De Stijl movement. It exemplifies Neo-Plasticism, using only primary colours (red, yellow, blue) with black and white, and intersecting horizontal/vertical lines to create a balanced, rhythmic composition of asymmetrical rectangles, reflecting his pursuit of pure abstraction and universal harmony. 

Key Characteristics:
Artist: Piet Mondrian (1872–1944).
Movement: De Stijl / Neo-Plasticism.
Elements: Thick black lines, primary colors (red, yellow, blue), white, and grey.
Composition: Asymmetrical grid of squares and rectangles, creating dynamic tension and balance through contrasts.
Philosophy: Expressing fundamental truths through pure abstraction, balance of opposing forces (vertical/horizontal).