Full disclosure: I think Mary Chance is a display genius. I had the pleasure of working with her and creating displays with her years back at a high school library, and she taught me everything I know about Microsoft Publisher and crafting with paper!
Mary has since moved on to be the solo librarian at Alvin Junior High in Alvin, TX. She told me that she no longer has time to develop and design all that she wants to in her library, so she is training students to help her. Mary says the students come up with the design, and she just makes it possible for them to execute it. Her only rule with the revolving display is that the existing one cannot be taken down until there is a replacement.
The library hosts many book clubs each year, and often well-known authors make an appearance (Eoin Colfer is scheduled for next month). The students design a mobile poster to promote the book club, and Mary rolls it through the school during lunch periods to attract interest and talk to students about the featured book.
Contact Mary Chance if you’d like to know more information about her displays. Parental permission was obtained before posting these pictures.