The IPCC report is, famously, the most-reviewed document in human history or something like that. Which is why I was so intrigued by this graph sent to me by a BH correspondent. It shows the number of review comments received on each page of the Second Order Draft of the Working Group II report, leaked to this blog just a few days ago.
The labels on the x-axis appear at the start of each chapter, and you can see that after an initial flurry of activity on the first page or so interest tails off rapidly.
I think we can say then that this is the report with the most thoroughly reviewed chapter title pages in history.