Book Aid

Status: Still in existence (as far as we know, but not recently checked)
Address: Bromley House, Kangley Bridge Road, Lower Sydenham, SE26 5AQ (osm) (gmap) (bingmap) (streetview)
Phone number: 020 8778 2145
Website: Website
Twitter: @BookAidTrust
Notes: Christian charity bookshop selling secular as well as religious second-hand books.