Retex is a type experiment. The idea is to reconsider our relationship to reading. The hypothesis behind this research is that a particular typeset texture which reflects formal diversity may be more relevant than a smooth and uniform texture for the pleasure of reading. Indeed, the visual roughness that emanates from formal heterogeneity crystallizes mnemonic configurations that mark out the reading and create eye's interest. This is reflected in these two Roman/Italic couples, one showing great uniformity while the other seeks to bring together a certain formal heterogeneity.