
Taneya Hammer poses on prom night in Newark, New Jersey, in 2006. The photo is part of Mary Ellen Mark's "Prom" series, which became a book in 2012. Beyond projecting personal style, prom photos reflect socioeconomic and cultural values from an American rite of passage, the legendary documentary photographer told CNN in 2012. Mark died Monday, May 25, at the age of 75.

Jasmine Lewis and Richard Salgado pose in New York City in 2007.

Michael Gonzales and Veronica Castillo pose in Houston in 2008.

Tim Blackwell and Kelly Hayden pose in Austin, Texas, in 2008.

Ashley Conrad poses in New York in 2009.

Samantha Monte and Khalil Samad pose in Staten Island, New York, in 2006.

Will Mattimoe and Jane Mattimoe pose in Charlottesville, Virginia, in 2008.