Henry Ford appeared very enthusiastic and even drove to the headquarters to give Peter Brown a set of examination books, urging him to review them as quickly as possible in the hopes of passing the examination.
Seeing Henry Ford appear so enthusiastic, Peter somewhat understood that Henry Ford now lacked the influence he once had. Seeing Peter visiting him, he didn't want to seem weak, so he simply offered him this examination quota. It was partly because he knew Peter might not necessarily pass the examination; it was a favor given for free. It also showed he still had a little power.
Regardless of what Henry Ford was thinking, Peter didn't care anymore—he took the books and went back to the hotel, sitting down to read them.
Given Peter's memory, there was no problem with remembering the information; it was just that most of the knowledge was highly specialized, which required some explanatory material.