Adobe Minion Pro offers a large selection of ligatures.

The ampersand is the best-known ligature but there are other commonly conjoined letters. Most Roman typefaces will include ff, fi, fl, ffl and ffi. The ss and other s-related combinations were common ligatures before the 19th century when the long s disappeared in print. Beyond these five standard ligatures, many type families offer more extensive sets of connected characters. Open Type now makes the use of ligatures effortless and many typefaces now offer an array of ligatures. In the early era of printing typographers found that the lowercase f collided with some letters that followed, so Renaissance type founders solved the problem by designing individual sorts for the most common problems.

Etymology: the Latin verb ligare, to bind, gives us the typographic term ligature for connected letters. Common cognates would be league, ligament, and ligate (to tie off an artery).