(From Lit Hub. Link to the complete article given below)

I have a hard time getting rid of books, and if you’re reading this space, you probably do too. As Summer Brennan put it, “what kind of degenerate only wants to own 30 books (or fewer) at a time on purpose?” Not anyone I know. But apparently, you only have to own one thousand books to qualify as a book hoarder. Which seems a bit low, to be honest—unless we’re talking about one thousand books in a New York City one-bedroom, in which case, sure.

In general, I’m interested in other people’s book collections. How many books, which ones, how are they kept, where are they kept? So, one rainy afternoon, I started poking around the book collections of famous people, to see which ones happened to be (technical or actual) book hoarders. Some of the results surprised me—though I admit I already knew about Karl Lagerfeld.

N.B. that of course this list is in no way scientific or exhaustive—no doubt there are scores of famous people out there with large libraries (disposable income and lots of space tend to make that possible), but either the actual numbers have never been documented, or I simply couldn’t (or didn’t) dig them up. Notables with high figures who didn’t make the top ten include Marilyn Monroe (400 books), George Washington (1,200 books), Charles Darwin (1,480 books), Oprah (1,500 books), Frederick Douglass (2,000-odd books), and David Markson (2,500 books). If you have any further intel on this score, please add on to the list in the comments as you see fit.

Karl Lagerfeld: 300,000 books

Karl Lagerfeld has more books than pretty much anybody. During a “master class” at the 2015 International Festival of Fashion and Photography, Lagerfeld explained: “Today, I only collect books; there is no room left for something else. If you go to my house, I’ll have you walk around the books. I ended up with a library of 300,000. It’s a lot for an individual.” No kidding. His collection includes books in French, English, and German, and in order to create more space in his home for all the volumes, he stacks his books sideways—that is, horizontally instead of vertically. Oh, and there’s a catwalk to reach the upper levels. This is Lagerfeld, after all.

Read more at the Lit Hub link here