The Developmental Strategies for College Readiness and Success Resource Guide was produced by the Education Commission of the States and the Southern Regional Education Board for the "Countdown to 2015: Developmental Strategies to Advance Readiness in the Common Core Era" convening held April 21-23, 2014 in Charlotte, North Carolina. The meeting was the culmination of a project between the Community College Research Center, Complete College America, Education Commission of the States, Education First and the Southern Regional Education Board. The meeting brought together 10 state teams, consisting of policy leaders and K-12 and higher education officials, committed to improving college readiness for all students. The overarching goal was to help states develop action plans to ensure that significantly more students are prepared for postsecondary education, complete entry-level college courses and persist toward credential completion. This challenge will become even more apparent in 2015 when the results of the first full administration of new assessments aligned to the Common Core State Standards are released. The Resource Guide summarizes information about developmental models, research and examples of state policies and institutional practices. The guide is designed to help policymakers and postsecondary leaders and practitioners identify and implement strategies that will improve college readiness and completion in their states.