Pin-up refers to a style of art, typically illustrations or photographs, depicting glamorous and attractive individuals, often in provocative poses or outfits. The term originated in the early to mid, particularly during World War II, when such images were often pinned up on walls as morale boosters for soldiers. Pin-up art features predominantly women but can also include men.

Pin-up art became iconic through the work of artists like Alberto Vargas, Gil Elvgren, and George Petty. These illustrations typically featured voluptuous women with idealized proportions, often in playful or suggestive situations. The style evolved over time, influenced by changing societal norms and artistic trends.

While the heyday of traditional pin-up art, its influence can still be seen today in various forms of pop culture, fashion, and art. Many contemporary artists continue to draw inspiration from the pin-up aesthetic, adapting it to modern sensibilities.