Central objective: Show how puzzles aid preschoolers'' cognitive, fine-motor, language, and social-emotional development, and provide practical strategies for child care centers and early childhood educators to implement puzzle-based learning. Supporting elements: related articles (including The Puzzle Pieces of Sleep Stages in Children and How they Fit Together), plus links to trainings, resources, and jobs for child care centers — trainings and resources are currently limited but a relevant article is available.