This 'Bière en Boîte' poster by Senéque is a French mid-20th-century advertisement promoting canned beer as modern and practical, highlighting quality, convenience, and economy. Senéque, active in the 1940s – 60s, was known for bold, cheerful designs typical of post-war advertising. The poster reflects a moment when canned beer was marketed as a symbol of progress and is now valued both for its design and its place in consumer history.