David Sedaris, on his mother's lung cancer.

David Sedaris tells a story from his boyhood, when a voice inside his head commanded him to lick every light switch and tap his forehead with his heel. It's from his book Naked.

Writer David Sedaris on parents' dreams and children's nightmares.

How David Sedaris became a Christmas writer — and how he started writing stories about the holiday that are so dark that sometimes it seems that he's trying to single handedly destroy Christmas. We hear from members of David's own family, and from David, all of whom insist that David loves Christmas.

David Beers explains the gorgeous, modern vision that drew his family, and tons of other families, to California, and then what happened after they arrived.

Binjamin Wilkomirski and New York writer Blake Eskin try and figure out if they are related. NOTE: A few years after this interview aired, Binjamin Wilkomirski and his Holocaust memoir Fragments were shown to be fabrications. Blake Eskin chronicled this story in his 2002 book A Life In Pieces: The Making and Unmaking of Binjamin Wilkomirski.

Ira Glass's grandmother.

Host Ira Glass talks to Amanda, who's 16 and lives with her mom in a Christian commune in Chicago.

The first part of Josh Seftel and Rich Robinson's documentary about South Africa. Josh meets people who may be distant South African relatives.

Photographer Joel Meyerowitz decided to go on a last big trip with his father, Hy, who has Alzheimer's. Joel also brought his own son.