There has been data ("Understand and be Excellent at Sex 22-39 Year Olds: Love, Sex Techniques, Emotions, Forming Lasting Relationships and Break-Ups - ISBN-13 978-0-9931872-1-6") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Sun Nov 11 10:30:07 2018, so the data displayed here has been removed .