Jonathan Lehmann, former corporate lawyer and web entrepreneur, is now a happiness expert. He studies happiness from many angles, including from the perspective of ancient spiritualities and modern sciences. He speaks in companies about happiness, focusing on the small changes that make a world of a difference. Today he leads the Facebook community, Les Antisèches du Bonheur (translates to "The Happiness Cheat Sheets"), and publishes guided meditations and related content on his YouTube channel. He also also has a various guided meditations in English which can be found on the Insight Timer app. His recent TEDx talk (in French), focused on three habits that transform the untrained mind into a tool for happiness.