Email optimisation: Email Images & Buttons

A split test by Philips Norelco’s email marketing team resulted 79.4% more 'Buy Now' button clicks.

Both versions had identical subject lines, offers, and copy but the winning design used

• a button colour that contrasted with the rest of the page
• images that didn't distract from the offer
• an image of the product, as it would appear on a store shelf, vs. the product itself helping put recipients in a shopping mood. 

http://whichtestwon.com/archives/12413