In 1982, photographer Barbara Davatz found 12 young, interesting, urban couples and decided to take their portraits. Little did she know, her little side project would continue for up to 30 years.
"I started [the portraits] in 1982 with initially no intention of continuing the series," Davatz told Business Insider. She went on to photograph the same people in 1988, 1997, and again in 2014. The project now covers three generations of people.
Her new book, "As Time Goes By", shows the remarkable changes that her subjects have gone through over the last 30 years. The series will be on display at Fotostiftung Schweiz in Zurich, Switzerland, from February 27 to May 16.
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Despite being a professional photographer for 40 years, Davatz still found time to work on personal projects like this one.
![](http://static3.businessinsider.com/image/56bdfc4d6e97c61a008b6e4f-400-300/despite-being-a-professional-photographer-for-40-years-davatz-still-found-time-to-work-on-personal-projects-like-this-one.jpg)
"I believed very strongly in the project, [I] loved it — considered it my 'life work' and my most important work," Davatz told Business Insider.
![](http://static6.businessinsider.com/image/56bdfc4d6e97c619008b6d5b-400-300/i-believed-very-strongly-in-the-project-i-loved-it--considered-it-my-life-work-and-my-most-important-work-davatz-told-business-insider.jpg)
A lot changed over the years with Davatz's subjects — not just their looks. Sometimes there was a change of partners, or the subjects became parents and even grandparents.
![](http://static4.businessinsider.com/image/56bdfc4d6e97c61e048b6dc9-400-300/a-lot-changed-over-the-years-with-davatzs-subjects--not-just-their-looks-sometimes-there-was-a-change-of-partners-or-the-subjects-became-parents-and-even-grandparents.jpg)
See the rest of the story at Business Insider