Electronic version of Reham Khan's autobiography was released on Friday,sending the Twitterati into a frenzy and sparking a debate about the impact it may have on the election campaign of her former husband Imran Khan.
The book drew strong criticism from readers sympathetic towards former cricket hero but was hailed by Khan's opponents in the hope that it can reduce prospects of the Pakistan Tehreek--e-Insaf chairman becoming next leader of the country.
Throughout the day Ms Khan retweeted the accolades she received for the "courage" she has shown by publishing the book in the face of fierce criticism and "threats".
The book's ranking kept improving on the Amazon website despite being leaked partially on the internet.
The paperback version of the book has also been published in the United Kingdom.
Reham Khan on her Twitter account announced to give away signed copies of the books to those who could prove purchase of e-book from Amazon.