The Collinearity Graph of E7,1 Cicek Guven In this talk, we will explain the collinearity graph of the geometry E7,1 in the thin and the thick case. The vertices of this graph has a regular partition. We will look at the distribution diagram of the graph, and knowing the thin case, explain how the parameters of that diagram can be calculated in the thick case by making use of the fact that E7,1 is a parapolar space.