Many reacted to the former Manchester United' manager's comments about the Liverpool skipper when the book was launched, including Reds boss Brendan Rodgers who claimed Fergie was wrong.
But Gerrard himself was humble in his response when asked about the inflamatory remarks.
"He’s entitled to his opinion," he said. "I’m a fan of his. He is one of the best managers in the world. I won’t lose any sleep over it.
"Throughout my career I have had praise from all types of people including him, and I am not vain enough to take it all.
"I have had some unbelievable praise from him and he tried to buy me, certainly on one occasion. Maybe even two."