Steve Jobs described Apple's strategy as an "aikido move"
Technology giant Apple is to begin its defence against charges by the US government that it tried to fix the prices of e-books.
Quotes from Steve Jobs' official biography have been cited as evidence in the case.
The three-week, non-jury trial begins on Monday in New York.
The US Department of Justice alleges that Apple agreed with publishers that they should set the price of e-books, rather than allowing individual retailers to do so - a system known as the "agency model".
Prosecutors claim this allowed Apple to take a percentage of sales made through its iBooks platform. They allege that this practice prevented Amazon from charging lower prices.
Five publishers originally named as defendants alongside Apple have already reached settlements in which they agreed to terminate their e-book agreements with Apple.
The largest settlement was with Penguin for $75m (£49m).
Hachette, HarperCollins and Simon & Schuster created a $69m fund for refunds to consumers and Macmillan settled for $26m.
Apple chief executive Tim Cook recently dismissed the idea of a settlement with the government.
"We didn't do anything wrong there," he said. "We're going to fight."
But the Justice Department has included quotes attributed to the former chief executive Steve Jobs, taken from his authorized biography, in its case.
It says Mr Jobs explained to his biographer that Apple had told publishers: "We'll go to the agency model, where you set the price, and we get our 30%, and yes, the customer pays a little more, but that's what you want anyway."
He was also quoted as describing the strategy as an "aikido move" - a reference to a Japanese martial art.
Apple's defence team argue that any agreement with publishers did not affect their dealings with other retailers such as Amazon.