George Orwel, an oil analyst and writer for both the Oil Daily and Petroleum Intelligence Weekly, has written a book about peak oil called Black Gold. You can read an excerpt at Energy Bulletin.

I have often been reminded of a Chinese saying that basically translates into something like this: Long is not forever. In other words, everything comes to an end; it doesn't matter how long it takes. I've been covering the oil industry for a long time and I often talk with many economists about the status of the market. They are a very optimistic lot. That's good because they deal with issues of wealth creation, except that when they let unreasonable optimism color their thinking in such a sway that their only concern is the short-term financial benefit, they run the risk of losing their credibility.