My brother Benjamin Bloomfield was recently interviewed on the SonRise Morning Show regarding his excellent A Collection of Christmas Carols. Ben re-typeset all the carols so the text and notes are clean and crisp to the eye. He also did a fine job selecting Christmas classics and also a few carols that have been neglected over the years and are ready for a new birth. Traditionalists and Latin enthusiasts will also appreciate the fine collection of pieces in Latin. But this book is truly for everyone. Go see for yourself! Because he is a stand-up guy, Ben has left the book in the public domain and is sharing the .pdf for free.
But after you look at the free .pdf, also go buy one! I recommend the spiral edition which is available through Lulu here.