One of the central features of the Temporary Assistance for Needy Families (TANF) block grant is promoting work and job preparation for parents (mostly single mothers) in families that receive cash assistance. The TANF block grant requires states to engage a certain percentage of work-eligible cash assistance recipients in specified work-related activities, such as job search assistance and training. Yet, data suggest that more TANF recipients could receive assistance that would help them gain employment and reduce their dependence. This book reviews some approaches that have been identified as holding promise for engaging TANF recipients in employment and increasing their earnings and examines ways in which selected states and localities have used them; and identifies factors that influence their use.