"I love the idea of inspiring women to be confident about themselves, to feel that they can be sexy," Kava Gorna tells PEOPLE

Photographer Creates Book That's All About the Booty

The subject of Kava Gorna‘s photography book 100 Cheeks is exactly what the title suggests: butts.

Gorna originally began taking the photos as a celebration of denim.

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“I often shoot for fashion and art, and these were shots that I was taking on the side,” Gorna tells PEOPLE. “I was always interested in how women interpret what is technically a uniform – a standard jean – in a way where you can see different bodies and different styles. Once I realized that I was developing a collection of these images, I decided it would be great to share it with the world.”

Although she didn’t set out to photograph just butts, they soon became a natural focus of her pictures.

“It just became a constant that I could photograph that represented my fixation on denim and my admiration of female sexuality,” says Gorna.

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The New York City-based photographer includes women of all shapes and sizes in her book (available online and in Urban Outfitters stores).