CHRIS PARKER/TIMES NEWS Students who attend classes at Carbon-Lehigh Intermediate Unit 21 enjoy a pizza lunch at the Panther Valley Public Library. The students help out at the library by cleaning, straightening books, vacuuming, dusting, taking out trash and putting stickers in books. The library, at 117 E. Bertsch St., Lansford, holds the luncheons in winter and spring to thank the students. Carbon-Lehigh Intermediate Unit 21 student Jana Zaengle enjoys a sip of juice with her pizza at a luncheon at the Panther Valley Public Library on Wednesday.