Open Happiness font here refers to the font used in the logo of Open Happiness, which is a Coca-Cola ad campaign rolled out in 2009, following its “Coke Side of Life” ad campaign.
The font used for the campaign logo is probably Gotham Book designed by Tobias Frere-Jones in 2000. The typeface is commercial one available in multiple weights and several variations. More details about it can be found on Typography.com.
Download Gotham Font
The Gotham font identified above is not available for free, please follow the link above and purchase a font license to download and use the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.