My library has a reading challenge every once in a while!
There is a lovely sign over their entrance -- and when I next go to the library, I'll bring my camera and take a picture of it and edit this post with the picture -- hopefully the wind won't be blowing great gusts so it will be clear and not blurred!
I was told that our little area has the largest percentage of readers in the whole state -- and I think a lot of that is because our library is so active and participates with the community in a variety of ways.
EDIT: have the photograph!
Shown in picture is porticoed entrance to what appears to be a large, multi-story building. The building appears to be made of some white masonry. There is a green trash container and a green bench under the roof of the portico. Off to the right side are some potted plants. A large banner hangs between two columns at the entrance of the portico. The banner is blue, perhaps 10 feet long and 2 or 3 feet deep. On it are words "It's Summer ... Let's read!". The letters to the words have been sewn onto the banner. All the letters are white except the I of It's which is lavender, the S of Summer which is yellow, the L of Let's, which is pale blue and the R of Read which is red. The dots are (I think) pale blue, yellow and red.