This report is the second in the series of outcome studies that focus on two Big Lift pillars: High-Quality Preschool and Summer Learning. The first report, Big Lift Participation and School Entry Indicators: Findings for the 2016-2017 Kindergarten Class (Gomez et al., 2017), focused on the early education experiences (prior to kindergarten entry) and kindergarten readiness outcomes of the 2016-2017 kindergarten class from the four Cohort 1 districts. In this report, we build on those analyses in two critical ways. First, this report features an analysis of the 2017-2018 kindergarten class, examining the kindergarten readiness outcomes of children from both Cohort 1 and 2 districts for the first time. Second, we follow up on the 2016-2017 kindergarten class by documenting their reading skills at the end of kindergarten and start of first grade. (author abstract)