50 books to read in a lifetime

Containing a wide range of books published over a 200-year span, this list of must-reads features works from Shel Silverstein to Stephen Hawking. After sourcing through Amazon's, "100 books to read in a lifetime", we've rounded up the top 50 from this epic book list. Scroll through the gallery below and check out how many you've read -- if you missed any, don't waste another second adding it to your bedside table.