CC BY 2.0 AT http://creativecommons.org/licenses/by/2.0/at/ Screenshot from the study prototype explaining one of the four visualization techniques - Horizon Graphs (HG) visualization, user study, evaluation, time series, spatial data, collapsed horizon graphs, compact boxplots, braided graphs 2019 Image In this user study we compare four different visualization techniques of times series in a spatial context using small multiples. Horizon Graphs divide the line graph of a time series into non-overlapping bands and apply a sequential/diverging color mapping to the time series. These bands are then layered in a top-to-bottom fashion to reduce the required height. In order to fit the spatial dimensions the Horizon Graph is shrunk horizontally. This screenshot explains the construction steps of Horizon Graphs. https://phaidra.ustp.at/o:3577 Dahnert, Manuel Kehrer, Johannes Aigner, Wolfgang Rind, Alexander eng image/jpeg