The purpose of this annotated bibliography is to provide reviews of key selected studies and professional standards related to the predictors of quality (POQ) included in the National Survey of Early Care and Education (NSECE). The intent is to provide a companion piece to the NSECE methodological report Measuring Predictors of Quality in the National Survey of Early Care and Education (NSECE Project Team, 2015). The two reports focus on the same predictors of quality, and follow the same numbering so that readers can easily cross-reference. (author abstract)