Designer is a vague term which usually implies the task of creating or of being creative in a particular area of expertise. Often times it is used to reference someone who draws or in some ways uses visual cues to organize their work.
... author of the "Imitation of Christ," was born at Kempen[?], Germany (40 miles northwest of Cologne) in 1380 and died near Zwolle (52 miles east-north-east of Amsterdam) ...