Mercer County Library System

We are committed to providing the materials and services that satisfy the educational, informational, recreational, and cultural needs of our diverse community, and strive to encourage a lifelong interest in reading.


Need help with the catalog?  Visit our  Catalog Help page !

Behind the Books: Our New Podcast

Behind the Books is a bi-weekly podcast, including interviews with an author, as well an MCLS library staff member each episode.

Branch Hours

Masks are required.

All library patrons over the age of 2 are required to wear face masks that cover both the nose and mouth, as well as adhere to social distancing guidelines.

Open to the Public

Quick, intentional visits instead of casual extended stays are encouraged. Branch hours are below:

  • Monday: 10:00 am to 5:00 pm
  • Wednesday: 10:00 am to 8:00 pm
  • Friday: 10:00 am to 5:00 pm
  • Saturday: 2:00 pm to 5:00 pm

The Hollowbrook Branch is open from 9:00 am to 5:00 pm everyday and is closed for lunch from 12:00 pm to 1:00 pm.

Aged 65+ and Immunocompromised Individuals are encouraged to come Monday and/or Friday from 10:00 am to 11:00 am to any branch.

Curbside Pick-Up Appointments

After you see or are notified that your holds are available, you may request Curbside Pick-Up! Appointment timeslot are available between:

  • Tuesday: 10 am to 4:30 pm
  • Thursday: 10 am to 4:30 pm
  • Saturday: 10 am to 12:30 pm

The Hollowbrook Branch has Pick-Up appointments from 10:00 am to 4:00 pm every weekday (Monday through Firday).

Appointments must be booked no later than one hour before the timeslot. If you would like to book a timeslot within an hour, please call the branch to see if they can accommodate you.

Available Services

Readers’ Advisory

Staff Picks