but it is sold in two different volumes, one for the keys and one for the colour plates, both being about the same price, ~$100, so the two together add up to quite a hefty purchase...I only bought the key, as Ed Lam's book has superior illustrations for the species that occur in this part of the world, i.e. NE N AM, (so are of the greatest import in my work) in my humble view. A few features: There is a much more substantial section on Enallagma, for example, but it is still mainly a key, so still short on the natural history info available from a compendium of the most recent research...Also the update of Dragonflies of N Am (last edition 2000) has been delayed for a couple of years now and should have been released in 2009, but it is now March 2010 as I write this and no sign of it yet. Anyone have any news on this? It baffles me that the two "bibles" to N AM would be out of print at a time when Odonata research is surging...