Since its organization in 1982, the Friends of the Lewiston Public Library have supported the library through advocacy and fundraising efforts. The group was founded to "promote understanding and appreciation of the functions, the materials and services offered by the library". The Friends primarily raise funds through their used book sales for expansion and improvement of the services offered to the Lewiston community by the library. The Friends support and assist the library by sponsoring both adult and children's programs throughout the year.

Co-Chaired by Joanne Lotterio

• The Friends of the Lewiston Public Library Annual Used Book Sale will be held the 2nd week of August at the Red Brick School House.
•  Fiction, Non-fiction, Audio books, Music, Videos, and Children's materials are available.
• The Friends of the Lewiston Public Library maintain a room in the library stocked with donated books for sale. The room is open during regular library hours.
• DONATIONS: Donations of books, audio books, CDs, videos, and DVDs are gratefully accepted during regular library hours at the Circulation Desk. Materials are evaluated and on occasion are accepted into the library collection. If not accepted into the collection, materials are sold by the Friends of the Library to generate funds to purchase new materials. We cannot accept encyclopedias or other outdated reference materials, sets or collections, textbooks, Reader's Digest condensed books, magazines, records, cassettes, VHS tapes, moldy, or strong smelling materials.