Eleni is a best-selling author, educator and sustainability specialist. She earned her Masters at Harvard University focusing on Environmental Policy and Media, and has consulted on sustainability issues for various companies, as well as presented, produced and consulted for channels and media organisations, such as the BBC, Participant Media and Green TV in the UK, US and Canada. She is the author of the environmental middle-grade chapter book, Justin Grey and the Earthkeepers and the best-selling Planet Agents book series, which won the State Award for Children's Knowledge Book in Greece and was shortlisted for several national awards, including the prestigious IBBY award. The series has been translated in numerous countries around the world, such as the US, China, Turkey, Egypt and the Middle East. Eleni is the founder of the non-profit organisation Planet Agents, which aims to empower children to take action on environmental issues, and the Director of Sustainability for the Sani/Ikos Group.