Did the authors just leave it up to us to figure out the X axis?

Also, I notice "comics" skews different from "manga". Interesting.

ha i was like, wtf is 'chick lit'? isnt that a gum??

from wikipedia

"Chick lit" is a term used to describe a type of popular fiction targeted at women. Widely used in the 1990s and 2000s,[1] the term has fallen out of fashion with publishers,[2] with numerous writers and critics rejecting it as inherently sexist.[3] Novels identified as chick lit typically address romantic relationships, female friendships, and workplace struggles in humorous and lighthearted ways.[4] Typical protagonists are urban, heterosexual women in their late twenties and early thirties:[5][6] the 1990s chick lit heroine represented an evolution of the traditional romantic heroine in her assertiveness, financial independence and enthusiasm for conspicuous consumption

Uhm you forgot something