Tracy Walter

Walter Tracy també va descriure un mètode d'espaiat basat en els principis de Harry Smith. El seu mètode és probablement el més influent i coneguda fins ara, ja que es reprodueix en moltes publicacions de disseny de tipus.

El mètode té procediments lleugerament diferents per separar majúscules i minúscules caràcters, que es reprenen aquí. El sistema divideix l'alfabet en minúsculs en tres grups de lletres:

Referència: 

-Tracy, W. (2003). Letters of credit : a view of type design. Boston: D.R. Godine.  , 74–75. ISBN:1567922406

Text: 
Walter Tracy also described a spacing method based on the principles he learned from Harry Smith of Linotype19. His method is probably the most influential and well-known up to now, since it is reproduced in many typeface design publications. Recently, portuguese type designer Miguel Sousa also developed a reliable method while creating his typeface Calouste20. All of the spacing methods cited above where created based in seriffed typefaces. Their creators do not make reference to adjustments or changes in the systems when regarding sans-serif designs. For this reason, it would be good to compare some of these methods applied to both seriffed and sans-serif designs.