"With an Umbrella (1939)" refers to a famous abstract painting by Swiss-German artist Paul Klee, created with gouache on paper, depicting a simple figure under a canopy, known for its distinct colour use (red/blue) and minimalist style, reflecting Klee's exploration of colou theory and expressionism. 

Artist: Paul Klee (1879-1940).

Medium: Gouache on paper.

Style: Abstract, influenced by Expressionism, Cubism, and Surrealism.

Description: A minimalist depiction, often featuring a red circle for the body and a blue circle for the head, symbolizing a figure with an umbrella.

Significance: Showcases Klee's childlike perspective, dry humor, musicality, and deep understanding of color.