The Sales Equation

[iansales]

Because science fiction ought to have an equation to define it:

http://iansales.com/2012/06/19/how-science-fiction-works/

(incidentally, I've not named it after myself, someone else did that)

 

[Nerds_feather]

that's awesome

 

[MeldedByThePlague]

I like!

There should totally be a "Wonder Index" for every SF book reviewed on SFFC.