Cass Sapir, a production director at HapYak Interactive Video, is an Emmy-nominated educational documentary producer, videographer, and entrepreneur. At NOVA/WGBH Cass was responsible for multiple phases of production including concept development, story research, national and international production planning, and management and science writing. Cass was the lead researcher and coordinating producer for numerous NOVA documentaries including The Fabric of the Cosmos, The Big Energy Gamble, and NOVA scienceNOW: How Smart Are Animals? Cass currently leads all in-house video production for HapYak Interactive Video where he advises numerous corporate, higher education, and other large organizations in developing and executing an interactive-video strategy.