Many Western governments are looking to workplace literacy, language, and numeracy programs to address general skill improvement with a longterm aim of improving labor productivity. Rigorous research on these programs' effectiveness for both of these agendas, however, remains sparse and limited in scope. This article reports the findings of an evaluation of 18 workplace literacy, language, and numeracy programs in New Zealand. This article reports the findings from these evaluations and identifies key elements of those programs that were most successful. (Contains 8 footnotes.)