“She was always one of the most painfully personal of artists…. But finally the one part of the Mexican artist Frida Kahlo’s life that has remained secret – at the orders of her former husband, fellow painter Diego Rivera – has been revealed in a new book published in Mexico. It tells the contents of a series of letters that Kahlo exchanged with her physician, and confidant, after she suffered a miscarriage in 1932, describing the devastation she felt when she realised that she could never have Rivera’s child.”