I find myself amazed and honestly a little depressed that a book published in 1903 about the poor of London can seem so relevant today. There are familiar themes of a wealthy, booming society that does little to nothing to care for its indigent, while also passing laws and serving punishments seemingly built to purposefully propagate a cycle of destitution, that feel like they haven't changed a lick in 115 years.
As a little background, Jack London (the same one who wrote White Fang and many other classics), decided against everyone's advice to go undercover in the extremely poor East End of London to get a sense for daily life in the slum. The result is this book, a non-fiction account of what he saw there. This could've been exploitative or sensational, but London writes with such empathy and passion about the people he encounters in the East End that you can't help but see their troubles as human, and fear for them and their children, even all these years later.
He uses his storytelling prowess to paint thorough pictures of the individuals and families he encounters, giving you a real sense for their lives as he sees them, as well as offering thoughts on why their lives are this way, and what a profitable society can do to improve the chances of its most poor. It's simultaneously analytical, damning, and emotional, which I really think is a huge accomplishment.
For instance, one of the more poignant sections involves his description of "The Thing," which is a metaphorical stand-in for the event or accident occurring in one of these people's lives that pulls them fully into the Abyss, the inescapable swamp of abject poverty that hundreds of thousands of East Londoners found themselves in. The Thing can be anything, and it is often completely out of the victim's control. A man could be getting by as an in-house workman, doing construction for a specific boss. Then, The Thing happens: his boss dies in a freak accident, and now the workman has no work. With their being such a dearth of jobs in London, and with his pay having only been enough to get him by week to week, he is quickly stuck in a cycle of begging, sleeping on the street, or any number of other horrors that defeat his ability to get himself further work. There are many stories about The Thing in this book, that really do a lot to show how close to the edge of homelessness people were. I'm obviously not going to describe them all, because you should really just read this book and see for yourself.
I can't recommend this highly enough. There is the occasional section describing how bad wages are that doesn't read easily in the modern day, since A. inflation has greatly changed the value of money and B. England doesn't even use shillings anymore. But beyond this bit of slightly confusing math, this book truly draws you in to the world of these people, and makes you think about how the cycle (or The Thing) can affect so many people in our own society. It's a little heart-wrenching, but worth it.