This is part of a series of guides that have been updated with permission from 4-H National Council. This resource guide is designed to be used by Extension professionals and after-school providers to deliver positive youth development programs in underrepresented areas or with underrepresented populations. It includes information on identifying underserved or underrepresented audiences and potential challenges to their participation in 4-H programming. The original educational material was edited and revised for this edition by the National Association of 4-H Youth Development Professionals Afterschool Working Group, led by Vanessa Spero. Published by the 4-H Youth Development Department, UF/IFAS Extension, May 2023.