In the corrigendum to the article "Dissecting direct reprogramming through integrative genomic analysis" published in *Nature* (doi:10.1038/nature07196), the authors correct the concentration of AZA (5-azacytidine) in the cell culture section. The incorrect concentration listed as 0.5 mM is corrected to 0.5 μM.In the corrigendum to the article "Dissecting direct reprogramming through integrative genomic analysis" published in *Nature* (doi:10.1038/nature07196), the authors correct the concentration of AZA (5-azacytidine) in the cell culture section. The incorrect concentration listed as 0.5 mM is corrected to 0.5 μM.