Let’s assume his book will be roughly 300 pages, with a ghost writer. Let’s have a contest to see who can predict the number of times Obama lists “I” or “me” or “my.”
I’m guessing nothing less than 30 times per page, so we’re looking at over 9000 times.
If we count the singular first possessive personal pronoun “mine”, total number of times first person pronoun is used will top 11,000 times easily.