The Merrimack Valley Library Consortium (MVLC) is a library network consortium created by Nancy Jacobson and Evelyn Kuo in 1982. MVLC manages the resource sharing of 34 automated and partially automated libraries in Northeastern Massachusetts, ensuring unified access to all of their catalogs, which represent almost three million items and more than six hundred thousand titles.
Most library cards in Massachusetts are valid at MVLC member libraries.
References
Merrimack Valley Library Consortium Wikipedia(Text) CC BY-SA