So what’s the big deal about books at Christmas? Well, at the risk of sounding like a broken record: in any normal calendar year, Christmas is the biggest book-buying season of the year.  Now, 2020 has attempted to put that to the test with record-shattering book sales every month since March, at one point skyrocketing to 777% higher sales than the same month a year prior. Frankly, in the midst of a year when at-home entertainment has proven so crucial, there’s no reason to think books will not remain one of the most popular gifts again this holiday season.  For…