User blog comment:LittlePeng9/How many books are there?/@comment-5029411-20131201204132

Pages that fit 2 lines: 10^200-10^100

Pages that fit 1 and 2 lines: 10^200

100x49 = 4900

4900x10^100 = 4.9x10^103 letters fit 10^100 pages.

Total of pages: 10^5000!!!!!!

Total Letters: 100(10^4900-10^4800...10^200-10^100)...4800(10^200-10^100)+4.9x10^103 in this book.