Picasso was a prolific artist, painting more than 50,000 artworks in his lifetime.
Much of his creativity was fuelled by his relationship with women.
The Muse is typical of a series of paintings he created in the 1930s during his relationship with a young woman named Marie-Therese Walter.
Picasso bumped into Marie-Therese in the streets of Paris.
She was 17. He was 45 and already married to Ukrainian ballerina Olga.
Picasso and Marie-Therese began a secrete relationship which led to a flourish of artistic creativity.
Picasso painted endless portraits of her.
They are all bold, creative, cheerful, full of sun and happiness - and deeply erotic.
Picasso was an infamous womaniser.
Around 1930 he met his next muse - surrealist painter Dora Maar.
His paintings shifted to sadder and more tortured portraits - which she was apparently very unhappy about!