Forgot to mention that my husband and I both recently read
South: The Story of Shackleton’s Last Expedition 1914-1917 written by Shackleton himself.
We had read
Endurance a few months back, which was one of the best books I've ever read. Everyone we've recommended it to has enjoyed it. If you like non-fiction these books are must reads.
This one fills in some of the blanks and is more detailed, but still just as interesting. There is a movie too we found and watched recently, which was also very good.