All Harris County Libraries will be closed on Monday, January 16th in observance of Martin Luther King Jr Day. First observed in 1986, this floating federal holiday always falls on the third Monday in January because Martin Luther King Jr was born on January 15th. If you are interested in learning more about Martin Luther King Jr, the library has several books available. Also, check out our biography database where you can find news articles, photos, video and more. You can access library databases from home with our library card.