Louis L. Lemoine completed an art degree at California State University in Los Angeles as a design major. In the 1980s he worked as an instructor at the city’s Trade Technical College and obtained a lifelong teaching licence for California’s community colleges. Lemoine is a long-serving member of The Magic Castle, a renowned private meeting place for magicians and magic enthusiasts in Hollywood. Since 1987 he has worked as a graphic designer for Walt Disney, where he is primarily responsible for the creation of theme park attractions. In the early 1990s, as part of his design concepts for Euro Disneyland, Lemoine developed the idea for the futuristic typeface Linotype Spacera while also creating a Mickey Mouse handwriting style for the Toontown section of Disneyland California. 

As a typeface designer, he works for Linotype GmbH and, since 2000, he has also operated under his own trading name of Lemoine Design. In 2010 he presented the multimedia installation 101 Ways to Create Magic, a calligraphic compilation of 101 variations of the word “magic”.