This is just one of the images in a series used in popular social media by the Pinal County Library System to celebrate National Library Card Sign-Up Month in September. There are 30 images total planned to be released daily by the library, each featuring benefits of having/using a library card. The images were created carefully to appeal to key demographics of social media websites. I liked how the library phrased their design process:
The graphics were inspired by the colorful, minimalist, and retro design style of Penguin and Pelican classic paperback novels. These iconic covers have seen a revival of popularity with internet and graphic design communities, including revisions of contemporary novels, album art, and more.
See the full explanation of the project and accompanying images at the Pinal County Reads blog.