Sigmund Freud: Interpretation of Dreams
"Sigmund Freud, drawing largely from his own memories and dreams, published what he regarded as his most important work, The Interpretation of Dreams, in effect a record of his [four year] self-analysis. The book was published in 1899 but Freud had the publisher mark the date as 1900. He wanted it to usher in the 20th Century. No one noticed. The dream book, containing ideas that would shape the modern era, sold just 300 copies in six years."