"My blue love, our first separation ... darling, I think I can say that never has a man taken me as much, and I believe I'm making love for the first time." Edith Piaf's "blue love" was a 13-time French speed racing champion bicyclist named Louis Gérardin. The letters were written in 1951 and 1952 during a feaverish, little known, love affair – shortly after her true love, the boxer Marcel Cerdan, died tragically in a plane crash. The letters are intimate, full of sexual ravings and pleas for Gérardin to leave his wife. Before Gérardin could leave his wife Piaf had already married another man. In 2009, 54 of the letters were sold at Christies in Paris for 59,000 euros.  The letters will now will be published in the book entitled My Blue Love – out on April 30 in France.