Diana S. Zimmerman is an American author, magician, and businesswoman.

Zimmerman was fascinated by magic as a child. As an adult she became known as the "World’s Foremost Lady Magician” and choreographed illusions for magicians such as David Copperfield and Lance Burton. Zimmerman is also CEO of CMS Communications, Intl., a Los Angeles, CA based business communication and events company.

Zimmerman was inspired to write Kandide and the Secret of the Mists after seeing a painting by artist Maxine Gadd. Gadd was eventually asked to illustrate the novel. Zimmerman felt that Gadd’s illustrations were so important to the enjoyment of the novel, she insisted that they be published in full color in the hardcover edition.