The Portland Public Library serves over 66,000 residents of the city of Portland in Cumberland County, Maine. It comprises the Downtown Branch, Burbank Branch, Peaks Island Branch, Riverton Branch, and a Bookmobile that travels throughout the city. The library maintains roughly 274,000 volumes and circulates approximately 941,000 items per year, including books, ebooks, audiobooks, movies, music, magazines, CDs, DVDs, and video games. It also provides Library of Things items and Passes to local museums, parks, and cultural sites. Library services may vary across the locations, but generally include WiFi access, public computers with the Internet and Microsoft Office, printing, 3D printing, scanning services, and interlibrary loan requests.