“Walter Tracy (1914-1995) was a respected type designer and typographer best known for his newspaper-related work. He wrote several articles and books on type, the most important of which is Letters of Credit (Godine, 1986). In Letters Tracy covers a wide range of topics with impressive detail and clarity. But what really sets the book apart is the insight it gives into some of the techniques and practices of type design. There are few readily accessible texts that discuss these specifics, let alone ones written by experts. In the section of Letters of Credit called ‘Character spacing’ (p. 71-80), Tracy outlines a method for approaching one of the more difficult, crucial, and poorly-understood areas of type design: determining how letters in a typeface should be properly fitted.”