Rank Title Author Scale* Male Female
1 Catching Fire Suzanne Collins 10 31% 69%
2 The Perks of Being a Wallflower Stephen Chbosky 7 44 56
3 Mockingjay Suzanne Collins 5 35 65
4 The Casual Vacancy J.K. Rowling 3 48 52
5 Heroes of Olympus: The Mark of Athena Rick Riordan 3 53 47
6 Fifty Shades Darker E.L. James 2 5 95
7 Gone Girl Gillian Flynn 2 47 53
8 The Racketeer John Grisham 1 51 49
9 The Bone Bed Patricia Cornwell 1 55 45
10 Reflected in You Sylvia Day 1 15 85

* How many conversations took place for every 10 comments about book #1. Data provided by CoverCake.