Regarding the article "The Design Factor

(Campaign, 3 May), Grey Worldwide has asked Campaign to point out that the new look of the Mars packaging was created by Jones Knowles Ritchie.

In the same piece, Jim Williams, the director of strategy and research at Young & Rubicam EMEA, was referred to as Jim Edwards. Y&Rchetypes, the research tool launched by Y&R, was not created jointly with Landor, it is proprietary to Y&R. Landor designed the presentation templates and collateral.

In "Brands in the Boardroom

(Campaign, 3 May), the Brand Engagement measurement system should have been identified as a Circus proprietary tool which has been licensed to McCann-Erickson.