HMM.. Never worry about book errors anymore..

HMM.. i know.. sometimes, friends borrow books
and then when you get it back then you don't really
know how many errors there really is.. SO HOW AR???

I found an advertisement
























With the book error detection device, we can install
on the book, any small errors are calculated and then
u can sum it all up and ask your friend to pay for the damage..

Coffee spills: $5
Cockroach odor: $5
Tears: $50 cents per tear
Discoloring: $5