Vivian Mungall started her lettering career as an apprentice with Stephen A. Ziller, owner of Ziller of Kansas City, a professional engrossing art (calligraphy) studio. Stephen, a 1932 graduate of the Zanerian College in Columbus, Ohio, was the second owner of the engrossing studio which was founded in 1895 by Frederick W. Tamblyn, a well-known penman. In 1983, Master Penman Stephen began teaching her layout, design, and illumination skills. Vivian specializes in awards, resolutions, certificates, diplomas, poems and more. The studio creates a variety of lettering for a wide range of associations, corporations, and schools nationwide. Rich, her husband, joined the studio in 1985 and a partnership was formed with Stephen. In 2012, the studio moved to Orlando, Florida. Sebastien Saint-Ouen joined Vivian and Rich as a Partner in 2013.

Vivian was recognized as a Master Penman at the 2002 IAMPETH Conference. She is a Past President of IAMPETH and hosted the annual conference in Orlando in 2010. Vivian has written two books on Cadel capitals. The iBook is Cadels, A How-To manual with Pattern Families and Historical Examples for these Decorative Calligraphic Capitals in 2015 and the hardcopy, Cadels, A How-To Manual in 2019.