Undercover

Each calendar holds 24 mini jigsaw puzzles, one for every day from December 1 to December 24. Every puzzle has 100 pieces and comes in its own numbered box, all tucked inside a decorative 13" × 13.75" outer box.

Each mini is 100 pieces and small enough to solve on a coffee table or tray. Finished sizes by calendar:

• Janet Hill Advent Calendar: 7" × 9"
• Loré Pemberton Advent Calendar: 7" × 9" and 8" × 8"
• Harry Potter Advent Calendar: 9" × 7" and 7" × 9"
• New Yorker Advent Calendar 2nd Edition: 7" × 9"

Each 100-piece mini takes about 30 minutes to an hour, depending on your skill level. Just right for a daily puzzle break.

No. Each puzzle comes in its own small box, so the pieces stay separate until you open that day.

The boxes are numbered 1 to 24, but there are no rules. Open one a day, catch up on a few at once, or save the whole set for a long winter weekend.

Not at all. Start whenever it arrives and catch up on the days you missed, or treat it as 24 small puzzles to enjoy all winter.

Keep them. Each mini goes back in its box, so you can puzzle them again next year, frame a favorite, or tuck a few into stockings and gift bags.

Some customers save their calendar and complete it any time of year. It's a perfect way to focus, challenge yourself and unplug, whatever the season.

Yes. It lasts all December, gives a calm few minutes every day, and leaves the recipient with 24 puzzles to keep, unlike chocolate or beauty samples that are gone in a moment.

Because the puzzles can be done again and again, the gift lasts for years and can become a holiday tradition of its own.