When Vreneli Stadelmaier started to coach women, she discovered a theme in many of the coaching sessions: the insecurity of women, the impostor syndrome. She discovered that this insecurity could well be the reason for the lack of progression of women to the top. She decided to investigate this and subsequently, to write a book about it. This book, written in Dutch, was called F*ck die Onzekerheid and appeared in October, 2014. This resulted in a flood of publicity and requests for appearances. Meanwhile, the 7th revised edition of this successful book has been published and the English version, Sure She Can, is published in May, 2016.