The Hat Man

Picador

The Man Who Mistook His Wife for A Hat: Oliver Sacks

Level Head Publishing

The Hat Man: The True Story of Evil Encounters  

The Hat Man (English Edition)                    

Level Head Publishing

The Hat Man: A Guide in Comics on How to Get Rid of Dark Beings for All Ages: 2

Independently published

HAT MAN: Terrifying Tales of The Dark Figure Who Haunts Dreams and Reality – True Reddit Stories to Share Around the Campfire

Beltz

Mich hat man vergessen: Erinnerungen eines jüdischen Mädchens: 956

Esoteric Rec.

The Man In The Bowler Hat                        

Abacus

The Man In The Wooden Hat: From the Orange Prize shortlisted author (Old Filth Book 2) (English Edition)

Independently published

When a man hates a woman                        

The Hat Man (The Hat Man Series by Nancy Trembley Book 1) (English Edition)