The Promised Land Author is EBAN, a four-letter word. EBAN is the pen name of Eban Alexander, an American neurosurgeon and author. He is best known for his book, 'Proof of Heaven: A Neurosurgeon's Journey into the Afterlife, ' which recounts his near-death experience during a coma caused by bacterial meningitis. He has also written several other books, including 'The Map of Heaven' and 'The Life Beyond Death.'