Celtic Advent: 40 days of devotions to Christmas. David Cole.
I bought this as one of 2 Advent devotional books last year, shared it with my wife daily and recommended it to others. We are using it again this year. I am still recommending it and have bought a copy for each of my sons. One man to whom I explained Celtic Advent said that he found it far more understandable and practical than the "normal" portrayal of Advent. You decide.