I adored this book. 
 Decluttering and organizational books have always held a fascination for me. I think I'm secretly scared I'm going to become a hoarder. So I like to keep check on that. Plus, I try not to be too much of a consumer. We don't need all the stuff we have. Less stuff is good. But it can be hard to let go. I've enjoyed Peter Walsh's take on letting go of things (things are not memories .. if you get rid of the thing, you don't lose the memory). And a few (several!) years ago, I recall Sandra Shamus sharing a story about getting rid of things (and people) in her life that didn't bring her joy. 
 I've tried to follow that .. don't keep it unless it brings you joy .. but that can be tricky b/c that is NEVER the only question when it comes to stuff. 
 Marie Kondo takes that as a starting point, but builds on that .. what does it mean for books, for clothes, for gifts. I love her approach. She's been criticized for anthropomorphizing our things and our houses (some say that is a Japanese quality - I don't know enough about it to know if that is true), but I think that anthropomorphizing is actually important because of the emotions that we imbue our stuff with. 
 And yes, her book was a tiny bit (and I do mean tiny) repetitive, but I think that is a function of the translation. 
 I really appreciated Kondo's approach (you only tidy once .. so get ready) and her very practical advice. I'm a little daunted about how to start (she wants you to do it all at once; I might need to take a week off). 
 But even if you don't follow her approach completely, the book is worth reading. It illuminates several facets of our relationships with stuff. And it is utterly charming.