Donlon Books (Soho)

Status: Still in existence (as far as we know, but not recently checked)
Address: 62 Kingly Street, Soho, W1B 5QN (osm) (gmap) (streetview)
Website: Website
Twitter: @DonlonBooks
Notes: Specialises in art, music, fashion, philosophy, and erotica. Also has a branch in Hackney.