It's a big day when your little one starts to talk. Not only does this move you one step closer to deciphering their tears, but it marks the beginning of a big journey: teaching them their ABCs. While the classic tune is a great teaching tool, there's more than one little song to teach tots their letters. Instead, try using a bedtime story. From favorite poems to silly stories, these 15 books make learning the ABCs as easy as 1-2-3!