Jackal

Hy there! I'm interested in what novels were popular in the 1940's. I'm looking for books, people red then. The books could be written in 1920 or so, if it was popular in the 40's. For some specifications, I need romantic and/or drama books from that period, that were popular. Just a few titles and author could help me out. If you have any source of information, that would be greatly appriciated! Thank you for advance!