The cover image for the September 29, 2004 issue (Volume 24, Number 39) was incorrect. Two of the autophosphorylation arrows that showed the activity between the subunits pointed incorrectly. The correct cover image is shown below. For details, see Figure 2 in the article “Regulation of Calcium/Calmodulin-Dependent Protein Kinase II Activation by Intramolecular and Intermolecular Interactions,” by Leslie C. Griffith, which appeared on pages 8391-8393 of the September 29, 2004 issue.