As of June 1, 2020, the 2019 list has not been published. The link will take you to the OBCB homepage where you can see previous lists and hopefully soon, the 2019 list.
Readers of this list, updated every 5 years, will gain an understanding of our diverse world and build a foundation to deepen their response to that world." Titles on this list were written for young adults (12-18) and adults. (ALA; American Library Association)