11/07/2011 09:00 am ET Updated Dec 06, 2017

Ze Frank's "Young Me, Now Me" Features Childhood Photographs Repeated Years Afterwards

An internet legend in his own right, comedian Ze Frank often sets challenges to his followers. 'Young Me, Now Me', launched in summer 2010, became a phenomenon.

The principle is simple: find an old photograph of yourself or someone in your family, and then repeat the pose in as precise a manner as you can.

Some of the results, a compilation of which are about to published in a new book, are laugh-out-loud funny. Others are poignant reminders of how much people change - and how much they stay the same.

We've picked out some of our favorites from the book, alongside commentary by the people featured in the photographs.

Is there a photograph from your own childhood that you would want to replicate? Tell us about it in the comments.

Young Me, Now Me