RETRO BOOK-RELATED AND MYSTERY VALENTINE'S DAY CARDS

Remember those Valentine's Day cards you punched out and gave to all the people in your class?  I love these Retro Mystery and Book-Related Valentine's Day Cards. Be sure and scroll through to the end of this post where this year I've added some really weird ones. They don't really seem to be quite in the Valentine's Day spirit, but mystery folks will enjoy them. Happy Valentine's Day!

And then there are the Bookish Valentines...

And now a few WTF Valentine's Day cards. 

What were the card designers thinking?