Having a library card makes you feel like a superhero with all the amazing things it gives you access to, including technology, media resources and educational programs. This Library Card Sign-up Month, show us your best superhero pose for a chance to win a $100 gift card, courtesy of the American Library Association. Help spread the word by striking a library superhero stance, holding your physical library card or your device with your e-card. Post it to Instagram (@walthamlibrary), Twitter (@walthamlibrary), or Facebook (@walthamlibrary) using the hashtag #LibraryCardHero. Don’t forget to cover up any personally identifiable information on your library card, and please tag @walthamlibrary .

Don’t have a physical card? You can register for an ecard by simply clicking this link.

The promotion ends Tuesday, September 22, at 1:00 pm. All library lovers are encouraged to participate.

The #LibraryCardHero promotion is open to residents of the United States, Washington, D.C., and U.S. Territories. Employees of the American Library Association are not eligible to participate.