Which Came First?: A Dose of Inspiration

Ah yes, it's that age-old question we've all asked/heard/pondered: Which came first, the chicken or the egg? 

It's also the question that, no matter one's stance, cannot honestly be answered. For none of us were around when the chicken came to be. (or the egg, depending on which side of the fence you fall.)

But perhaps if we change a couple of the words, an answer may be within reach. Hmm...how about if we replace "chicken" with "author" and "egg" with "book?" Let's see... 

W...