der Dramatiker
playwright
A person who writes plays (dramas) professionally; a stage author.
William Shakespeare ist wohl der berühmteste Dramatiker der Weltgeschichte.
William Shakespeare is probably the most famous playwright in world history.

playwright
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playwright
A person who writes plays (dramas) professionally; a stage author.
William Shakespeare ist wohl der berühmteste Dramatiker der Weltgeschichte.
William Shakespeare is probably the most famous playwright in world history.

The word consists of 'Drama' (drama/play) and the ending '-iker'. The ending '-iker' often refers to a person who works professionally or intensively with a certain field, as in 'Physiker' (physicist) or 'Informatiker' (computer scientist).
Er ist kein Physiker, sondern ein Dramatiker.
He is not a physicist, but a playwright.
'Der Dramatiker' (the playwright) belongs to the word family of 'das Drama' (the play/drama) and 'dramatisch' (the adjective dramatic). If you know one word, you can understand the others more easily.
Dieser Dramatiker schreibt sehr dramatische Stücke.
This playwright writes very dramatic plays.
Common adjectives used with 'Dramatiker' (playwright) are 'berühmt' (famous), 'bekannt' (well-known), 'modern' (modern), or 'zeitgenössisch' (contemporary).
Bertolt Brecht war ein sehr einflussreicher deutscher Dramatiker.
Bertolt Brecht was a very influential German playwright.
author
'der Autor' and 'der Dramatiker' can both be people who write texts. 'Autor' is the more general term and fits many types of texts, for example novels, articles, or nonfiction books. 'Dramatiker' is more specific: he writes plays, that is, texts for the stage. The words can be confused because a playwright is also an author. But 'Dramatiker' says more precisely what kind of texts he writes. If it is not specifically about theater, 'Autor' is more natural. If it is about plays, the stage, or dramatic literature, 'Dramatiker' fits.

Der Dramatiker arbeitet gerade an einem neuen Stück für das Stadttheater.
The playwright is currently working on a new play for the municipal theater.
In der Zeitung stand ein langer Text von einem bekannten Autor.
There was a long text by a well-known author in the newspaper.