The randomly placement of the stripes, sometimes done on the clothing piece but other times as an accessory, is what makes the collection different from other
collections within the same genre.
There is a similar standard provision in many traditional publishing contracts that gives your publisher the right of «first refusal» on the next book you
write within the same genre (or it may be on your next book period).
Next up is Ubisoft's Far Cry 3, which like the other three titles manages to do dramatically different
things within the same genre — and it does those things exceedingly well.
When you buy these books together — especially if they're
within the same genre — it helps the book appear on «also bought» lists, which increases visibility across the retailer's website.
I enjoyed The Witch's House and figured I would enjoy this as it is
within the same genre.