Five different types of love letters are letters that share things unsaid, those that repeat things one always says, letters containing poetry, letters containing song lyrics, and humorous letters. Each type of letter is unique in the message it conveys to a boyfriend or girlfriend.
A letter of things unsaid works well for one who is shy about conveying emotions. Writing out unsaid things can be a powerful way of opening up a partner to new emotions. A letter of things always said can be a reminder of emotion and commitment to a lover. Poetry is a way to be creative, and show a partner that the writer put extra time and care into crafting a letter. If writing song lyrics, the person writing the note can use existing song lyrics or craft a new song. A humorous letter can be nice for couples who share humor and sarcasm in their relationship.