(CNN) - Elizabeth Smart has penned a new memoir on the nine months she was held in captivity.
Smart was 14 in 2002 when she was abducted from her bedroom in Salt Lake City.
She told CNN's Anderson Cooper part of the reason she wrote the book was to help victims who struggle to move on with their lives after a violent crime.
"I want to reach out to those survivors and those victims. I want them to know that these things do happen, but it doesn't mean you have to be defined by it for the rest of your life. You can move forward and you can be happy," Smart said.
Smart says it's unfair to victims to question their decisions when they're being held against their will.
"You can never judge a child or a victim of any crime on what they should have done because you weren't there, you don't know and you have no right to sit in your armchair at home and say ‘Why didn't you escape? Why didn't you do this?' They just don't know," Smart said
The memoir, called My Story, was released Monday.
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