This comprehensive professional learning experience, focused on our earliest learners in 4K, is designed to enhance early literacy instruction through intentional letter learning cycles. Over the course of three in-person learning days and one personalized coaching day, participants will engage in high-leverage routines and strategies that foster strong letter-sound correspondence and accelerate letter learning. By the end of this series, participants will have a clear, actionable plan for structured letter learning that is responsive to data, integrates local resources, and supports effective early literacy development.