Note that if you have Books 1 through 12, they will sort as 'Book 1', 'Book 10', 'Book 11', 'Book 12', 'Book 2', 'Book 3', ... due to the default lexic sorting of sort. Note also that '"winners," evolutionary (see "evolution," "natural selection")' sorts first in Book 1 because its first character is " (double-quote).