For books at Christmas, I have several at least our oldest grandson will listen to (Hugo is 4 years old). Some others more age appropriate for the one-year olds. There are many resources on-line of great Christmas books for young children.
Another on-line resource is where books are read aloud by Screen Actors Guild members(not just seasonal books) on a site called Storyline Online. These are well-done readings, and well-chosen books. It's a wonderful free place for kids to hear a book, see the book pages, and let adults rest their voices.