David Coffin and his brother Eric (http://seekingalpha.com/author/eric-coffin) are the co-editors of the HRA (Hard Rock Analyst) family of publications. David, the “geology side” of HRA, has been active in prospecting, resource calculation, and feasibility studies for resource companies for 30 years. He attended the Haileybury School of Mines, authored numerous qualifying reports for resource companies, and managed and designed field programs for over 15 years. David is regularly interviewed on North American media for his views of commodities economics and specific exploration areas and projects. He speaks at a number of investment and mining industry conferences in Canada, the US and Europe every year. Dave went against the crowd in the late 1990’s urging companies to return to high grade underground mining which turned out to be salvation for many of them during the bear market that followed. He was also one of the first (along with Eric) to call the current cycle as the secular trend others have only recently recognized. Although the HRA publications keep him too busy to do much else he is still regularly asked to review and give opinions on new exploration projects. David logs, literally, hundreds of thousands of miles every year, visiting exploration sites on six continents in order to bring back the real goods for HRA subscribers. Eric and David can be reached at email@example.com (mailto:firstname.lastname@example.org) or through their website at www.hraadvisory.com (http://www.hraadvisory.com/).