Drawing on innovative workforce development efforts around the country, Jobs for the Future (JJF) publications, tool kits, and other resources respond to the challenges to advancement for low-wage workers. Occasional papers in the series Advancement for Low-Wage Workers seeks to elevate discussion of this issue within and outside the workforce field, addressing public policy and on-the-ground practice. "Earning While Learning" highlights programs and practices that encourage skill development by providing income and supports to those pursuing further education and training. This report reviews "what works" in providing workers and job seekers with income even as they improve their ability to advance in the labor market and meet employer needs for a modern workforce. The author discusses key elements generally applicable across states and communities, including: (1) Apprenticeships in union-based, long-term and paid training programs; (2) Publicly supported paid internships; (3) Publicly supported, flexible training programs; (4) State-funded training programs for incumbent workers; (5) Cash stipends; and (6) Income-based cash payments to Workforce Investment Act (WIA) participants in training.