Samuel Benjamin “Sam” Harris (born April 9, 1967) is an American author, philosopher, and neuroscientist. He is the co-founder and chief executive of Project Reason, a non-profit organization that promotes science and secularism, and host of the podcast Waking Up with Sam Harris. His book The End of Faith (2004), a critique of organized religion, appeared on The New York Times Best Seller list for 33 weeks and also won the PEN/Martha Albrand Award for First Nonfiction in 2005. Letter to a Christian Nation (2006) was a response to criticism of The End of Faith. In The Moral Landscape (2010), Harris argues that science can help answer moral problems and aid human well-being. He subsequently published a long-form essay Lying in 2011, the short bookFree Will in 2012, Waking Up: A Guide to Spirituality Without Religion in 2014 and, with British activist Maajid Nawaz, Islam and the Future of Tolerance: A Dialogue in 2015. – Wikipedia
In my opinion, Harris’ unique contribution to the atheist culture is to show, as a meditator and neuroscientist, that “spiritual experiences” can be attained reliably without anything supernatural.