Celebrities may live glamorous lives, but at the end of the day, we’d like to think that a good number of them curl up at home with a good book. And that’s why it’s so gratifying to learn that a completely unexpected famous person possesses a ton of books. We gained newfound respect for Karl Lagerfeld, for instance, when the Observer published a photo of his enormous (and, of course, gorgeous) home library. Curious to find out which other celebrities are bookworms behind closed doors, we rounded up ten photos of famous bookshelves, from Woody Allen and Oprah to Greta Garbo and Michael Jackson.

Karl Lagerfeld [via]

Rod Stewart [via]

Michael Jackson [via]

Diane Keaton [via]

Woody Allen [via]

Joan Rivers [via]

Frank Sinatra [via]

Greta Garbo [via]

Kelsey Grammer [via]

Oprah [via]