This is useful as an overview of polar exploration to guide further reading, but the timeline is a little confusing as the Antarctic and Arctic are dealt with separately. I was also somewhat disappointed that Inuit history of Arctic exploration is omitted, particularly regarding the voyage of the Karluk. We know the name of Inuit hunter who travelled with Bartlett (Kataktovik), and he should be referred to by name when many other people with similar importance in the history are named.