According to the official description, the book, out on October 24, is ‘based on more than 40 interviews with Jobs conducted over two years - as well as interviews with more than a hundred family members, friends, adversaries, competitors, and colleagues’.

Brand consultancy firm Interbrand predicted that Jobs death could actually boos the value of Apple by around $670million (£431million) from $33.5billion as fans make sympathy and impulse purchases.

Jobs died on Wednesday, aged 56, following a lengthy battle with pancreatic cancer.

Within minutes of his passing being confirmed, tributes had been paid by world leaders, the most famous technology bosses and fans throughout the world.

A day later, thousands continued to gather at shrines dedicated to Jobs from California to London, Sydney and Tokyo, Japan.

Well-wishers flocked to his home in California to leave flowers and cards, as his family mourned inside. Jobs is survived by a wife, a son and two daughters.

Devastated Apple staff, meanwhile, celebrated the life of their former boss with memorial services in his honour.

At Apple stores across the world and the company's headquarters, makeshift shrines quickly sprang up as Apple's legions of fans gathered together to remember the life of a man they revered as a hero.

'We are planning a celebration of Steve’s extraordinary life for Apple employees that will take place soon,' Apple chief executive Tim Cook said yesterday.

Global leaders from politics and business spoke out about how they had been inspired by the celebrated innovator.

Tributes, led by President Barack Obama, began pouring in within minutes of the company confirming Jobs's death.

'We are deeply saddened to announce that Steve Jobs passed away today,' read a statement by Apple's board of directors on Wednesday.

'Steve's brilliance, passion and energy were the source of countless innovations that enrich and improve all of our lives. The world is immeasurably better because of Steve.

'His greatest love was for his wife, Laurene, and his family. Our hearts go out to them and to all who were touched by his extraordinary gifts.'

The homepage of Apple's website switched to a full-page image of Jobs with the text, 'Steve Jobs 1955-2011.'

Clicking on the image revealed the additional text: 'Apple has lost a visionary and creative genius, and the world has lost an amazing human being.

'Those of us who have been fortunate enough to know and work with Steve have lost a dear friend and an inspiring mentor.

'Steve leaves behind a company that only he could have built, and his spirit will forever be the foundation of Apple.'

His relatives also released a statement, which said he 'died peacefully, surrounded by his family

'In his public life, Steve was known as a visionary; in his private life, he cherished his family. We are thankful to the many people who have shared their wishes and prayers during the last year of Steve's illness.'

Apple CEO Tim Cook announced the news of Jobs's death to Apple employees via e-mail, in which he said: 'I have some very sad news to share with all of you. Steve passed away earlier today.

'No words can adequately express our sadness at Steve’s death or our gratitude for the opportunity to work with him. We will honour his memory by dedicating ourselves to continuing the work he loved so much.'

Mr Obama later gave a fuller statement, in which he praised Jobs as a 'visionary' who was 'bold enough to believe he could change the world, and talented enough to do it'.

'The world has lost a visionary,' he said. 'And there may be no greater tribute to Steve’s success than the fact that much of the world learned of his passing on a device he invented.

'Michelle and I send our thoughts and prayers to Steve’s wife Laurene, his family, and all those who loved him.'

He added: 'Steve was fond of saying that he lived every day like it was his last. Because he did, he transformed our lives, redefined entire industries, and achieved one of the rarest feats in human history: he changed the way each of us sees the world.'

Steve Jobs' high school friend who founded Apple with him in his parents' garage wiped away tears as he paid tribute to the visionary genius.

Steve Wozniak, who helped start Apple in 1976, said he will miss his fellow co-founder 'as much as everyone.'

'We've lost something we won't get back,' Mr Wozniak said. 'The way I see it, though, the way people love products he put so much into creating means he brought a lot of life to the world.'

Social media sites were inundated with tributes from fans, with one of the most popular messages being that three apples changed the world: ‘The One that Eve ate, the one that dropped on Newton’s head and the one that Steve built.’