In the News & Views 'Electron microscopy: The challenges of graphene' (Nature Mater. 10, 165–166; 2011), the sentence introducing reference 4 was potentially misleading, and should have read: 'The structure of graphene has only recently been imaged with atomic resolution. A textbook example is the work by Jinsheck et al.4, in which the authors employed the wavefunction reconstruction technique in an aberration-corrected, state-of-the art instrument (see Fig. 1).' This has now been amended in the HTML and PDF versions, after print: 23 November 2011.