Typographie
“(…) For Emil Ruder space has never been merely a lifeless paper surface to be covered with lettering or ornamentation at will. In his hands the passive background is transformed into a vital and active foreground. Every piece of typography thus becomes a picture in which black and white are played off against each other; indeed, an effect of depth is often created, the eye being led by lines or rows into a third dimension. (…)”
Preface by Adrian Frutiger of Emil Ruder’s book “Typographie”.