Typesetting involves the presentation of textual material in graphic form on paper or some other medium. Close as it is related to our daily life, typesetting exhibits certain complexities which may be unfamiliar and sometimes unimaginable to the layman. The use of typographical ligatures is one such complexity.Compare the two appearances of the word “define” in Figure 7. Figure 7(a) illustrates the word typeset with the “fi” ligature as Knuth’s TeX does. The letters “f” and “i” are combined into a single glyph. Figure 7(b) shows the word typeset without the ligature as Microsoft Word does. The letters “f” and “i” remain separate. Other examples include the “ff”, “ffi”, “fl” and “ffl” ligatures, as shown in Figure 8. Perhaps the most notable ligature in active use is the “&” (ampersand), which originated from “et”, the Latin word for “and”.