I prefer fiction to non-fiction but I'd thoroughly recommend these books:-
'Into Thin Air' by Jon Krakauer. I saw the movie 'Everest' but had some unanswered questions at the end of it, so I turned to this book for answers. So well written and, like a previous poster, I have no interest whatsoever in mountain climbing.
'Educated' by Tara Westover. A fascinating insight into a Mormon survivalist family and the author's struggle to obtain an education, against all odds.
'Travellers in the Third Reich' by Julia Boyd. A portrayal of Germany between the two World Wars and the rise of Nazism, as recounted by visitors to Germany during this period.
'The Hare with the Amber Eyes' by Edmund de Waal. The author inherits 264 Japanese netsuke which have passed down through his family, and researches their origin and the journeys they have made through the years.
'The Radium Girls' by Kate Moore. This book tells the story of female factory workers in the US who were employed to paint clock and watch dials with a luminous substance made from radium. You can probably guess what happens next. Sad and horrifying in equal measure. I'll never complain about health and safety again.
I'll have a look through the other contributions for inspiration for myself, with an eye to Christmas wish lists.