Slab Serif Typefaces
Because slab serif typefaces are thick and heavy, most designers use them only for headlines and advertisements. The poor thick/thin transition gives the letterforms a monoweight appearance. The following example is Century Schoolbook at 18 points,
Notice that, similar to the modern style, the stress through the letter is vertical, while the serif on the letter n is horizontal. Generally speaking, slab typefaces are too heavy for body text.