Love Letter is a fantastic game – I often describe it to people as the simplest fun game. It is easy to learn, you can play it anywhere, it fits in a pocket, it requires some attention but is easy to play while tired.
It also has a beautiful theme, which, when I first played it, seemed to demand recreation in the world of Dumas’ The Three Musketeers.
I have produced a set of cards for the game based on the books, and changed the wording of the cards to slightly improve play and atmosphere (instead of being knocked out of the round, players “despair” about their rejected advances for example).
Although printing the cards based on these pdfs is a massive hassle – they are provided here in case you are interested. (The hardest parts are getting sufficiently good cards and printing, as well as making sure the backs are fully indistinguishable.) I recommend you buy the game instead/in addition!