Favorite holiday book

We love this book. This is an Advent book with one uniquely illustrated door to open each day of December up to Christmas. Each door opens to reveal part of the story of Christmas. This would be a great gift to give a family with young children. We've been reading it twice a day (naptime and bedtime) but the kids would read it all day if we let them. Instead, we hide it the rest of the day so they don't look ahead or tear the doors off (they have a tendency to do that).
It's called, simply, The Advent Book, and was written and illustrated by Jack and Kathy Stockman who live in the Chicago suburbs.