"I'm supporting this cause because it's very, very important to me. Some people do not believe I'm a victim of domestic abuse but that's OK," she said. "I've never been to prison but I think I could find other ways to contribute there."
Arias said that if she were sentenced to life in prison, she hoped to start a book club and help teach fellow inmates how to read.
"You've heard before I'm an artist. I'll never create another oil painting, but these are some of my paintings," she said.
Clicking through to the next slide, she added, "My family and I have a lot of memories. We won't be creating any more of these together."
She also referred to the family members of Alexander, who spoke last week to the jury during victim impact statements.
"I never meant to cause them so much pain," she said, pointing to Alexander's family.
The same jury that convicted Arias will decide her punishment. It will be formally charged and sent to deliberate this afternoon after closing statements by both attorneys.