Jeffrey Marks has been a professional medium for 20 years and is the award-winning bestselling author of three books on mediumship and psychic phenomena, including the Amazon.com bestselling series The Afterlife Interviews: Volumes I & II . He received mediumship certification through James Van Praagh and also advanced mediumship certification through Lisa Williams International School of Spiritual Development. He has also an alumnus of the world-renowned Arthur Findlay College of Mediumship and Psychic Studies in Stansted, England. He has also completed coursework from the UK Academy of Mediumship. He was a selected presenter for the 2015 National Afterlife Awareness Conference, and is also the former president of the Washington State Ghost Society.