
Terry W. answered 03/01/18
Tutor
5
(25)
Experienced Tutor Specializing in STEM Subjects
There is actually 52 weeks and 1 day in each standard 365-day year. Every 4 years there is also an extra leap day. In other words, there are 365.25 days in the average year. Over 70 years there should be around 25567.5 days depending on which year you start counting. That's 3652.5 weeks roughly.
So you will read just a few more books than you thought. While the Harvard Library's collection is counted in millions of books, many of those will be repetitive information (same material in different languages or different books or different editions or copies of the same book) which could cut down on the amount of info you need to get through. Not to mention that certain information will be out of date and useless to general reading such as past editions of certain reference books (law compendiums, bound news media, etc.). And then your interests may not extend to many of the areas that the collection covers. While 3652 books is still not a lot, if you do read that many quality books, you will still be quite well-read.