The 50th anniversary Bell Jar cover is here alongside the original design. Guess which is which.
It was crucial that, in order to make this joke work, the classics I chose to re-design were well known enough that people understood the gag even if they hadn't read the books. Think it worked. I had a very fun time after last week's Crunch The News throwing book titles around with John Luke Roberts, Deborah Grayson, Nat Guest, and Becky Luff so they should all share credit with me on this one.