The beauty of calligraphy in logo design is that it is alive and created by hand. Unlike a font each letter can be customized in an organic way. Here are some samples from my portfolio recently posted on Workbook. Each one shows a different way of combining letterforms and symbols. Sometimes a design works best through contrast, as with the rough brush icon of the globe with the sans serif typography laid over it. In the case of the Publix Premium logo above, an illustrative element in the same style as the lettering creates a look of high end elegance and harmony that can be used across multiple products within the store.
See more of my work mixing symbols and letter forms in my Illustrations and Icons portfolios.