Sources said his book covers the topic on 9/11 attacks, Hurricane Katrina and the financial meltdown of the US.
However, as per Drudge Report website, Bush takes very few shots at his critics and does not take aim at Barack Obama, who is battling his own plunge in popularity on the eve of America's mid-term elections.
Reports said the book starts with the words: 'It was a simple question, "Can you remember the last day you didn't have a drink?" And it goes on to describe the ex-President's return to sobriety after problems with alcohol in his youth.
In the chapter 'Stem Cells', Bush describes receiving a letter from Nancy Reagan detailing a 'wrenching family journey.'
But ultimately, he wrote: "I did feel a responsibility to voice my pro-life convictions and lead the country toward what Pope John Paul II called a culture of life."