This document discusses using different types of data for continuous school improvement, including perceptual data, student learning data, school process data, and demographic data. It outlines a statewide system in Nebraska to provide professional development training to analyze data at all levels, from school staff to statewide cadres. Key aspects of the data training include the four Nebraska Data Literacies: what do the data show, why might this be, how should we respond, and did our response produce results. The document also provides resources for perceptual data surveys available through the Nebraska Department of Education.