Are you looking for a great Bible Reading Plan for December? Good Morning Girls has you covered. In fact - they have a plan to get you started on the entire Bible. And it is guided but you can jump in at any time. I even saw that it is a favorite of Candace Cameron Bure when she is traveling and away from her small group at her home church.
For the month of December, they are reading Psalms. It is not too late to catch up and be on board for Psalms 8. Plus - there is a printable workbook and bookmark!
Last year I did the Advent Reading Plan. It was great. I think that I will try to do it at least every two years, but this year I am setting out and working on Psalms. If you need a great Christmas reading plan, check this one out.