In theory this is a great idea, but unfortunately I think it's just not well executed.
There are a few passages which don't scan properly, and others which have contradictory statements; Clärenore departs Frankfurt heading to China via Moscow yet for some reason drives through Baghdad, Amelia Earhart is mentioned to save money for a few years from December 2020 which takes her to the middle of 2021, someone sails solo around the world in May 1968 and in response the Golden Globe Competition is announced in March 1968…...
Then there's the kit list pages, which don't have any detail and therefore are relatively useless pictures of generic kit.
The actual expedition descriptions are in some cases very interesting, but others merely become quite dreary logs of the expedition with no insight or recounting of events other than the times and places.
Finally, I struggle with the quite egotistical move by the author to put both his own and his wife's expeditions in a list of the top 25 expeditions, to then realise that they married while she was 23 and he was in his 40s which made reading the final chapter quite uncomfortable to be honest.
Overall I think having more detailed kit lists, with further suggested reading for the expeditions and reducing the number from 25 to 10 and therefore dedicating more time to them along with maps then this could have been a really interesting book, but it just feels slightly too untidy.