Abstract: This article is about the sketchbook of the Gothic master Hans Hammer from the late Gothic period. The sketchbook originates from the late 15th Century Germany. It has four main topics: drawings of machinery (building equipment), drawings of existing buildings, drawings of parts of buildings (pinnacles, stone profiles, vaulted ceilings, staircases, parapets), and texts (including a Hungarian-German glossary).
The article reviews what is already known about Hans Hammer, then demonstrates and interprets a few drawings from the sketchbook, and outlines the direction of the future research.

This is my first publication as a PhD-student. The full text can be read and downloaded here: