Book Circulation Data (click for full-size image) Augie March (Fall 2011) Weekly circulation starting 6 months before launch, ending 12 months after launch Total circulation by branch Gold Boy, Emerald Girl (Spring 2012) Weekly circulation starting 6 months before launch, ending 12 months after launch Total circulation by branch Book Thief (Fall 2012) Weekly circulation starting 6 months before launch, ending 12 months after launch Total circulation by branch Warmth of Other Suns (Fall 2013) Weekly circulation starting 6 months before launch, ending 12 months after launch Total circulation by branch Comparative Probability density for the different book launches. Note that the curves show a greater peak for Augie March and Gold Boy, books that didn’t circulate much until they became One Book selections. Warmth of Other Suns and Book Thief were better-known titles and had significant pre-existing circulation prior to the One Book event. Weekly check outs starting at the launch date.