The market is set to be flooded with New Labour memoirs – Tony Blair's The Journey is out in September, Peter Mandelson is penning his "mixture of autobiography, personal reflection and political history", and former spin doctor Alastair Campbell has updated his account of the explosive feuds at the top of the leadership – but the former first lady appears to be aiming for a different market.
Her autobiography is to be published to coincide with Mothers' Day next year, Ebury Press has announced, and will reveal "what it is like to be a woman, wife and mother in somewhat exceptional circumstances".
Brown is well poised to exploit a fresh readership. She has attracted more than 1 million followers on Twitter, overtaking the ubiquitous comedian and presenter Stephen Fry to become the most followed Briton on the micro-blogging site.
And it was on Twitter that she revealed the news to her followers, saying: "Just agreed with my publisher Ebury to write a book – working title Behind the Black Door – so chained to laptop from Monday morning".
The PR turned PM's wife is renowned for her discretion. So fans must wait to see if the shackles of her husband's political ambition are now sufficiently loosened for her to divest details of her tricky relationship with Cherie, or her thoughts on the machiavellian Mandelson.
Cherie Blair's own account more than hints at rivalry between the two women, in particular her gripe that Sarah had a better public image than herself because she had a bigger PR team working for her; "four people, whilst I had two".
Ebury Publishing managing director, Fiona MacIntyre, said of the forthcoming book: "Sarah achieved much in her own right during her time in Downing Street, with opportunities that allowed her to meet a wide range of women of all ages.
