Here's why it's unlikely:
* Literacy: During William's time, most people, even those of high status, could not read or write.
* Availability of books: Books were extremely rare and expensive, often hand-copied on parchment.
* Historical records: No written records of William's personal preferences in reading material exist.
It's interesting to speculate what kind of books William might have enjoyed if he could have read them, but we can only rely on our knowledge of the time period and his interests. Perhaps he would have appreciated:
* Religious texts: As a devout Christian, he likely would have been interested in the Bible and other religious writings.
* Historical accounts: He might have been interested in the histories of his ancestors and the battles they fought.
* Chivalric romances: These popular stories of knights and their deeds would have appealed to his sense of honor and bravery.
Ultimately, we can't know for sure what William the Conqueror's favorite books would have been.