Love, Ruby Valentine by Laurie Friedman
Ruby's favorite holiday is of course Valentine's Day and she spends days preparing valentines for the folks in her town. She is so exhausted from all her hard work that she sleeps thru the holiday! This cute, rhyming picture book teaches kids that any time is appropriate for letting people know you care about them.

The Ballad of Valentine by Alison Jackson
This rhyming picture book can be sung to the tune of Oh My Darling Clementine. A woman and her beau keep missing each other. The pictures are hilarious and I wouldn't be surprised at all if this book becomes a classic Valentine's picture book for kids.