He was a close friend and artistic collaborator of van Gogh, who joined him in Arles in 1888. They had a tumultuous relationship that ended with van Gogh's infamous ear incident. Gauguin influenced van Gogh's use of colour and symbolism.
He was a distant cousin and mentor of van Gogh, who taught him the basics of painting and drawing. He introduced him to the Hague School of realistic landscape painting and encouraged him to study colour theory.
He was a major influence on van Gogh, who admired his mastery of light and shadow, his expressive portraits and his biblical scenes. Van Gogh copied some of his etchings and wrote about his admiration for him in his letters.
He was a pioneer of Post-Impressionism and one of the most influential painters of the 20th century. Van Gogh saw his paintings in Paris and was impressed by his use of geometric shapes, multiple perspectives and vibrant colours.
He was a Norwegian painter who expressed his psychological and emotional turmoil through his paintings. He was influenced by van Gogh's style and technique, especially his use of thick brushstrokes, swirling lines and bright colours.