Catalogtree is a multidisciplinary design studio based in Arnhem/NL. It was founded in 2001 by Daniel Gross and Joris Maltha who met at Werkplaats Typografie. The studio works continuously on commissioned and self initiated projects. Experimental tool-making, programming, typography and the visualization of quantitative data are part of their daily routine. Recent endeavours include book design by bin-packing, posters with Mollweide Hemispheres, bot swarms and infographics of all kinds.