Since the age of eleven, Shannon Muir knew she wanted to be a writer. During her teenage years, she also developed an interest in comics and animation and, in 1996, moved to Los Angeles to pursue a professional career. Her first job was as a production assistant on Sony Animation’s Jumanji: The Animated Series, and shortly thereafter, she earned a promotion to production coordinator on Extreme Ghostbusters. She would later go on to work as a production coordinator on the acclaimed Nickelodeon series Invader Zim.
Muir’s first big break as an animation scriptwriter came in 2003, when she and her creative partner and now husband, Kevin Paul Shaw Broden, were offered the opportunity to write original scripts for the Japanese series Midnight Horror School. Her first book, Gardner’s Guide to Writing and Producing Animation, was published in July of 2007 and a follow-up, Gardner’s Guide to Pitching and Selling Animation, was released in 2008.