Composition No. I, with Red and Black (1929) is a famous abstract painting by Dutch artist Piet Mondrian, known for its geometric style (Neoplasticism) using only primary colours (red, yellow, blue) and neutrals (black, white, grey) with horizontal/vertical lines to create balanced, asymmetrical compositions, exemplified here by the prominent red square and intersecting black lines, showcasing pure harmony and structure. 

Key Characteristics:
Artist: Piet Mondrian
Style: De Stijl / Neoplasticism, reducing art to essential elements.
Elements: Black lines, white space, and a large red square, with other colored planes.
Composition: Asymmetrical, relying on right-angled intersections and balanced proportions.
Colours: Primary red, black, and white, reflecting Mondrian's focus on fundamental colors.
Location: Housed at the Kunstmuseum Basel in Basel, Switzerland.