A word before I start. If you buy this you *must* buy Fleming's book "Barrows Boys" ; this is part 2 of 2, (even though you can't tell from the title)
This is an excellent book. It details Arctic history from 1848ish (Franklin search) through to Peary/Cook/Henson/no-ones discovery of the pole in 1908/9 (it does go on a little after that covering various flying expeditions).
Whereas Barrow's Boys (1818-1845) had a British focus, this book has a more American focus ; this is because of the explorers themselves, not Fleming himself.
Both books are basically sequential descriptions of each expedition - there is enough detail to get a good feel for each expedition (with the curious exceptions of Greely's expedition to Fort Conger and the Karluk expedition ?) in reasonable depth, and a bibliography for those who wish to read further.
The book deals with some detail wrt Cook and Peary, and concludes, basically, they both were not telling the truth about reaching 90 degrees, whilst praising their achievements.
It's slightly less humourous than Barrows Boys ; this is more than anything because the explorers had got a bit more competent by then and weren't going to the North Pole in swimsuits; and there are no digressions into African exploration.
This review probably sounds more critical than I feel ; the book is excellent, well researched and lively ; and both it and its companion volume are highly recommended to anyone with an interest in the Arctic, exploration, or just likes a jolly good read.