Dave Eggers spoke about his book, “Zeitoun,” at the Crest Theatre Wednesday in the feature event of the sixth-annual One Book Sacramento: Connecting Our Communities. In her opening remarks, Sacramento Public Library Director Rivkah Sass mentioned the fifth anniversary of Hurricane Katrina (Aug. 29) and the flood threat to the Sacramento region as reasons the library selected “Zeitoun.” Eggers took the stage in hiking boots and a pinstripe jacket. He was joined by interviewer Joseph Palermo, associate professor of American history at Sacramento State. Palermo has written two books on Robert F. Kennedy and blogs at The Huffington Post. “Zeitoun” narrates the story of Abdulrahman Zeitoun,