We read this book every December 6 in order to keep "Santa" where he belongs and help our kids discern between the jolly, fat patron saint of commercialism and the ancient original worth following.
Cheryl Odden has a series of books on the connection between modern western holidays and Saints of the Christian faith. For the first title of the year see... The Story of St. Valentine, Odden, 2007 https://www.goodreads.com/review/show...
Although the art quality of these books is lacking, the text and presentation makes it forgivable as a good way to introduce the lives of the saints to children.