Want to brush up on your interviewing skills before you see relatives over the holidays? I recommend Oral History for the Family Historian: A Basic Guide by Linda Barnickel, published by the Oral History Association.
You can get it through Amazon for $15. The 70-page guide practical advice for conducting family oral history interviews. It also contains an extensive list of sample questions, a legal release form, and some tips about common pitfalls, and other suggested resources.