Friends of the Tompkins County Public Library Book Sale (509 Esty Street): This is the second weekend of this twice yearly sale of over 250,000 books, audio books, CDs, DVDs, records, puzzles, and games, all donated by people in Ithaca to help raise money for the public library downtown. On this day, all books are only $2.50 each. FREE Chris...

Parents, Family, Friends, and the Public are all invited to visit the Cascadilla School at 116 Summit St., Ithaca, during the Open House from 5:30 pm to 7:30 pm.

Phantom of the Opera (Sage Chapel): A black & white silent film with live music in the magnificent Sage Chapel. Cornell Cinema shows the 1929 horror film Phantom of the Opera (with hand-colored sequences) and The Invincible Czars again performs a musical score created for this film. Get in the mood for Halloween! $8. 7:30 pm. Chris Jensen is taking...

(Comstock Hall at Cornell): This annual one-day insect fair is hosted by the Cornell University Department of Entomology. Come see the Bizarre, Bad, and Beneficial of the insect world. This is an interactive, hands-on experience that features hundreds of live insects. Popular favorites include the live Butterfly Room and the Arthropod Zoo. $3. 9:00 am to 3:00 pm. Debbie Burns...

(Cornell Creative Writing Reading Series) Hollis E. Cornell Auditorium – 132 Goldwin Smith Hall): Novelist Viet Thanh Ngyen won the Pulitzer Prize for Fiction in 2016 for the powerful immigrant story & spy novel, The Sympathizer. He also writes for the New York Times and Los Angeles Times and received a MacArthur Genius award in 2017. FREE 4:30 pm. Mary...

(Nabenhauer Recital Room, Ithaca College School of Music): Alexei Aceto is a 2017 graduate of Cascadilla School. Having completed his first year as a piano performance major with Dr. Charis Dimaras at Ithaca College, Alexei will play works by Bach, Debussy, and Janácek at his first solo recital at Ithaca College. FREE 7:00 pm. Chris Jensen is taking Cascadilla students

(Press Bay Alley & Ithaca Commons): Inspired by the Harry Potter books, this festival of Halloween fun & magic has hands-on activities, music, costumes, food, along with shops and booths where you can buy your own wand! You may also find Cascadilla's own Dave Kornreich teaching Astronomy. FREE Chelsea Guy is taking Cascadilla students on Saturday at 12:30 pm.

Cascadilla students and teachers all wear their Halloween costumes to school to celebrate “Cascadillaween.” Make, rent, or borrow your own costume!

(Olin Library – Room 107): Jill Frank, a Government Department professor at Cornell, will discuss her new book, Poetic Justice: Rereading Plato's Republic. Focusing on the philosopher Plato’s works as written texts, Frank challenges the traditional interpretation that Plato wants a top-down dissemination of knowledge, suggesting instead that he wants citizen-readers to challenge all claims to authority, even by philosophers....