Colchester: The book return is opposite the Helpdesk on the ground floor of the library. It also has an external  returns window on the side of the building opposite the Silberrad Centre. 

Southend: Books can be returned through the self-service machines on the ground or first floors of The Forum or via the external book drop located outside the building to the righthand side of the entrance.

Loughton: Books can be returned in the drop box on the landing outside the library or at the self-service kiosk inside the library opposite the helpdesk.