A friendly reminder that all Sonoma County Library branches will be closed this Monday, January 21, 2019, in observance of Martin Luther King, Jr. Day. This photograph, credited to Chester Higgins, shows people participating in the 20th Anniversary March on Washington, in honor of Martin Luther King, Jr., and to support the creation of MLK Day; August 27th, 1983. This image is just one of millions of rights-cleared images available free of charge through Britannica ImageQuest, which is available to all Sonoma County Library card holders.