How to predict the future (or at least one small part of it)

I'm ghost-writing a business book right now, and one idea that plays an important role in it is that what people read indicates what they will purchase in the future.

There are not enough words in the world.

I am not reading anything right now because I keep going in to places to find Hotel Theory and it's not there. Partially, I think this is due to fiction/non-fiction/theory/travel shelving problems. I wander from section to section accompanied by employees who tell me the computer says there's one in the store, and we can never, ever find it.

In my future, I will purchase Hotel Theory.

I will read it in Maine. I will pay close attention and report back if it foreshadows any other purchases, so you'll know what you're going to need to buy while reading it.