Closed Monday October 11th

All six locations of the Des Moines Public Library will be closed Monday October 11 for a staff in-service day.  Plus it's Columbus Day. The Post Office and banks in general will also be closed.
By federal law Columbus Day is celebrated on the second Monday in October.  President Franklin Roosevelt declared Columbus Day a holiday in 1937.  But it was first celebrated in New York City in 1792. 
Source:  InfoPlease Almanac