Hi Stan,The link you provided goes to an "Out of Print" version that is only sold by third party sellers. Most are used copies, and the few that are new cost twice the price of the current 3rd edition.A link to the current "updated" 3rd edition that is available directly from Amazon is below.http://www.amazon.com/Understanding-Exposure-3rd-Edition-Photographs/dp/0817439390/ref=dp_ob_title_bkThanks for the recommendation, I'm ordering a copy for myself today. Jerry
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