The Raven Design Group was a London based artwork and design business, known for cover design mostly on Charly Records Group and See For Miles Records Ltd. releases between 1982 and 1990. Any releases (with this name or similar names) outside this time-frame are likely to be other companies. There is also a Danish Raven Design Group and many US companies with the same name.
Another designer Adam Yeldham also did design work for Charly. In 1996 he established the similarly named Raven Design, chiefly active again 2002+ with Proper Music releases.