Mount Prospect Public Library exists to: Connect people to information, resources, and opportunities for enrichment and leisu ... re Provide and sustain a book culture through literary knowledge and interactive experiences Promote and support education and lifelong learning Build community OUR VALUES Accessible: free, equal, open Welcoming: helpful, friendly, inviting, approachable Professional: knowledgeable, trustworthy Personal: individualized service, collaborative Mount Prospect Public Library 10 S. Emerson, Mount Prospect, IL 60056 Tel: 847-253-5675 | info@mppl.org Monday - Friday: 9:00 AM - 10:00 PM Saturday: 9:00 AM - 5:00 PM Sunday: Noon - 5:00 PM South Branch 1711 W. Algonquin Rd, Mount Prospect, IL 60056 Tel: 847-590-4090 Monday - Friday: 11:00 AM - 7:30 PM Friday before the 2nd Saturday: 11:00 AM - 3:00 PM 2nd Saturday of the month: 11:00 AM - 3:00 PM Sunday: Closed read more