once upon a december

The listings include hardcover and paperback books and also list DVDs for video titles.

The DVDs in these results are listed with an MPAA rating of "Nr" and are labeled as DVD format; associated genre labels include TV, holiday, and comedy.

Children's titles use a mix of playful retellings and parodies as well as more lyrical retellings of the Christmas story.

All of the listed titles are published in English.

Book listings include suggested ages such as 4–8 years and 5–12 years, while some adult-oriented listings are labeled 22 years and up. DVDs in the results show an MPAA rating of "Nr" rather than a suggested age.

Page counts in this set range from about 40 pages up to 176 pages (children's titles are around 40–42 pages; some adult/novella listings show 176 pages).

Book dimensions vary: heights range from 8.5 to 11.0 inches, widths from 5.5 to 10.16 inches, and depths from 0.11 to 0.74 inches; a few listings omit depth.

Several listings are labeled Christian or religious; descriptions reference the Christmas story and Jesus, include nativity or angel-choir imagery (for example, halos for an angel choir), and note works described as "rooted in Christian faith."

Children's titles in these results appear in hardcover and paperback formats and typically show page counts of about 40–42 pages.