Buyology shows us how to spend less money by revealing the psychological traps that companies use to hack our brains and manipulate us into purchasing their products.

What's your most recent expensive purchase?

Think back and try to remember why you bought it.

Was it because, in your rational thinking, that was the best option?

Or do you feel loyal to a particular brand?

As much as we'd like to think we act logically when we buy things, the truth is that we usually don't.

It often comes down to more of a gut feeling, rather than actually weighing out the pros and cons of a purchase.

Why does this happen?

And what do companies know about us that they use to get us to buy their stuff?

These are just a few of the lessons you'll learn in Martin Lindstrom's Buyology: Truth and Lies About Why We Buy.

After this one, you'll be wiser about how to spot tricky marketing tactics.