Which book have you bought the most? Ammie Come Home, by Barbara Michaels. First I wore out my mom’s original copy. Then we wore out the replacement we bought for it. Then I had to buy one for myself when I moved out, and then I’ve bought at least one for someone else
The Master and Margarita by Bulgakov. I knew that I was going to lend it to my friends, so I bought a few extra second-hand copies just for that.
That's Elizabeth Peters' pen name! I love her so much - her Amelia Peters books about a middle-aged Egyptologist. That series was formative for me.
Every time I see a battered copy of Salinger’s “Nine Stories” I buy it. I don’t know why.
The Westing Game
Legends & Lattes! I bought the ebook when it came out, then the print (for myself and a friend) then the audible version for my husband. :)
Probably Gravity's Rainbow. If I find a used copy of an edition I don't have, I will get it. I think I have five at the moment.