The Ecorse Public Library is a member of the largest library cooperative in the State of Michigan, TLN. TLN is a 73-member library cooperative spread across Southeastern Michigan. Many of the member libraries of TLN offer reciprocity (borrowing privileges) to those libraries in the cooperative who also participate in reciprocal borrowing. The Ecorse Public Library is a reciprocal borrowing library. Not every library participates. A holder of an Ecorse Public Library card can use their home library card at TLN member libraries who offer reciprocal borrowing.