PREFACE

Let me start by annoying you a bit.

We all hate authors who do that. Some sort of smug statement about how clever they are, followed by some waffle about how they've spotted something clever that none of the other authors in their field has even come close to suspecting. It's deeply annoying. I understand that. I get it, really.

Only, I've got this Jaguar. And I've got it because I'm on Twitter.

Well, I say, 'I've got this Jaguar'. Actually, it's a loan for a weekend, but it's free of charge. And the reason it's arrived is because some idiot wrote off my car, I mentioned it on Twitter and Jaguar, bless them, got in touch.

(I'm going to pause this anecdote before people get excited: in this illustration, business owners should bear in mind ...

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