Its title, 'Mafia State', sums up its theme. Putin's created a state peopled by ex KGB (Committee for State Security) and FSB (Federal Security Service) officers like himself, bent on making money above all.
Harding was himself expelled from Moscow after a campaign of harassment in which he was followed, bugged, obliquely threatened and had his flat repeatedly broken into.
He spoke to me a short time ago.
LUKE HARDING: What I hadn't really expected, when I first arrive in 2007, was that this sort of security state, which as you say has been kind of traditional, in Russia it's gone on for a very long time, but that it would be back, and actually in some ways kind of re-fighting the Cold War. This isn't really about ideology anymore, I mean no-one's interested in global communism, the Soviet Union's gone, but this mechanism, the KGB if you like, carries on.
And it took a bit of knock in the early '90s when the Soviet Union collapsed the KGB, but rather swiftly it reformed and it was rebranded the FSB, the Federal Security Service. And by 1999, who was its boss? Well Vladimir Putin.
Really what he's done, over the last decade, as he's kind of undone various reforms to the security services which Boris Yeltzin carried out in the '90s. And he's turned it into this formidable, prodigious, secret, and really quite terrifying, kind of organisation that sees its goal as defending Russia from enemies. Both internal ones - opposition guys, human rights workers, those kind of people - and external ones - Western diplomats and people like me.
MARK COLVIN: Is it just Putin or has it managed to get a lot of FSB people dotted around the system?
LUKE HARDING: Well it's a kind of a KGB state now actually. The Russian government won't thank me for saying that. But if you look at the kind of people who are the top echelons of Russian power, a lot of them are Putin's friends, a lot of them are former KGB operatives from military intelligence, from foreign intelligence and so one. And obviously Putin feels comfortable with these kind of people.
And they share a similar kind of world view, which is essentially xenophobic, it's reflexively anti-Western, and the big project, I mean if Putin does have a big project, the project is to get back the sort of prestige and the international clout that the Soviet Union once enjoyed.
I mean what he really wants to be is to be taken seriously as a sort of, for Russia to be taken seriously as an international player and for people to be a little bit scared of Russia as well.
MARK COLVIN: It's difficult to know what's going on because, on the one hand, you say that he wants Russia to be great again, and I suppose that's a sort of ideological goal, but on the other hand, you say that it's really just about money, that it's a cleptocracy?
LUKE HARDING: It's more of a, I mean the more important project of course is to get rich. I mean the ideology is definitely there but the primary goal, I think, for Putin and his team is to make money and to, essentially, to hang onto that money and to off-shore that money. And so the Russian…
MARK COLVIN: How much money?
LUKE HARDING: Well we're talking billions and billions of dollars. The problem is, as a reporter in Moscow, it's extremely hard to get to the bottom of this. I mean you would need a thousand years and an army of lawyers and you'd need people to leak. But I mean, there have been some leaks, and about three or four years ago one source I spoke to said, I think rather convincingly, that Putin was worth about $40 billion. So in other words …
MARK COLVIN: That's billion …?
LUKE HARDING: … one of them …
MARK COLVIN: … not …
LUKE HARDING: … one of the richest ..
MARK COLVIN: … billion not million?
LUKE HARDING: … men here. That's billion $40 billion. In other words, one of the richest people in the world.