Laughing Shall I Die: Lives and Deaths of the Great Vikings by Tom Shippey. Probably better known for his academic books on JRR Tolkien, Shippey dives into Norse saga and poetry to look at the 'Viking' view of life and how one should die. Shippey is a good writer and keeps things moving along nicely, and even managed to keep things (relatively) clear when comparing the multiple different accounts of notoriously convoluted sagas, such as the Nibelungens. The first half of the book is all about the Viking/Norse view of 'how to die well', with the second half technically looking at how the idea of a 'good death' shows up in various sagas and stories, but (and this is no slight against the book or Shippey!) it ends up turning into to Shippey giving you a tour of a bunch of sagas, Germanic linguistics, historical context, some slight diatribes against modern academic scholarship for staying away from uncomfortable areas*, and 'stuff he found interesting'. The book does start to flag a bit at the very end, when Shippey moves away from the heroic and kingly sagas, toward the Icelandic sagas; which are characterized not by the clash of kings and the machinations of gods, but the lives of Icelandic farmers and their feuds and struggles. He specifically looks at how the themes of the 'heroic' sagas are woven into the Icelandic sagas, and how looking at the heroic and Icelandic sagas help us to flesh out a worldview given the sagas arguably deliberate effort to not show any characters internal monologue. I found that section a bit weak, though that is arguably due to my complete unfamiliarity with the Icelandic sagas than any problems with Shippey.
If you interested in the Vikings, Germanic/Norse myths and sagas, how people from other times think, or just some interesting stuff, I solidly recommend the book.
*Shippey specifically refers to the Norse (and frankly, European) engagement in the slave trade. He notes how many modern exhibits and books talk about Vikings as great traders, but leave hanging "what were they trading?". Their trade in gold, silver, and furs was less them producing it, and more them looting it from others and selling it on. Based on some analysis of prices from Byzantine and Arab slave markets from other historians, Shippey reminds us that most of the wealth flowing into Norse society came from selling slaves.