The Sesame Street friends go to the library and invites readers along to discover how libraries play an important role in communities. Readers learn how to sign up for their own library cards too! About the Sesame Street ® Field Trips series: Discover some of the amazing places in our communities—from the post office to the zoo—with the help of friends from Sesame Street. Hands-on back-matter activities help children engage with what they've read.