Say Pagan calendar and, for many, there's only one on the market. The annual wall calendar for witches by Llewellyn is a staple on Yule present lists.
There are very good reasons why it's so eagerly anticipated. First and foremost, it looks fantastic. A combination of classical artwork and the introduction of new, modern Pagan artists means that every month has great pictures.
It's something that you might choose to have on your wall, even if there wasn't the practicality of the dates underneath.
Indeed, I have known people to cut out the artwork, after the month or year is over, and frame them in their own right.
Also these calendars are informative! There's the generally useful data of the phases of the moon, plus the Sabbats, but historical notes too. Famous Wiccan birthdays (Doreen Valiente, Alexander Sanders, Janet Farrar etc) are listed, as well as events like the anniversary of witch trials.
However, each month comes chock full of seasonal tips and knowledge. The Sabbats are described or items in the natural world are highlighted. In that way, it's as much a guidebook as it is a calendar.
One year, when I was learning Spanish, a friend sent me the calendar from Spain. I used it as monthly practice in language!